1


                                                                      Exhibit 24

                                POWER OF ATTORNEY

       KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of them
(with full power to each of them to act alone), his or her true and lawful
attorneys-in-fact and agents with full power of substitution and resubstitution,
for him or her and on his or her behalf and in his or her name, place and stead,
in any and all capacities, to sign, execute and to affix his or her seal to and
file with the Securities and Exchange Commission (or any other governmental or
regulatory authority) a registration statement on Form S-4 (or any other
appropriate form), and any and all amendments (including post-effective
amendments) thereto, with all exhibits and any and all documents required to be
filed with respect thereto, relating to the registration under the Securities
Act of 1933, as amended, of shares of the Corporation's common stock, par value
$0.50 per share, granting unto said attorneys, and each of them, full power and
authority to do and to perform each and every act and thing requisite and
necessary to be done in order to effectuate the same as fully to all intents and
purposes as he himself or she herself might or could do if personally present,
hereby ratifying and confirming all that said attorneys-in-fact and agents, or
any of them, may lawfully do or cause to be done by virtue hereof.

       IN WITNESS WHEREOF, the undersigned director and/or officer has hereunto
set his or her hand as of the date specified.


Dated: August 18, 2000


                                            /s/ ROBERT G. WILMERS
                                            ------------------------------------
                                            Robert G. Wilmers


   2


                                                                      Exhibit 24

                                POWER OF ATTORNEY

       KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of them
(with full power to each of them to act alone), his or her true and lawful
attorneys-in-fact and agents with full power of substitution and resubstitution,
for him or her and on his or her behalf and in his or her name, place and stead,
in any and all capacities, to sign, execute and to affix his or her seal to and
file with the Securities and Exchange Commission (or any other governmental or
regulatory authority) a registration statement on Form S-4 (or any other
appropriate form), and any and all amendments (including post-effective
amendments) thereto, with all exhibits and any and all documents required to be
filed with respect thereto, relating to the registration under the Securities
Act of 1933, as amended, of shares of the Corporation's common stock, par value
$0.50 per share, granting unto said attorneys, and each of them, full power and
authority to do and to perform each and every act and thing requisite and
necessary to be done in order to effectuate the same as fully to all intents and
purposes as he himself or she herself might or could do if personally present,
hereby ratifying and confirming all that said attorneys-in-fact and agents, or
any of them, may lawfully do or cause to be done by virtue hereof.

       IN WITNESS WHEREOF, the undersigned director and/or officer has hereunto
set his or her hand as of the date specified.


Dated: August 18, 2000


                                            /s/ MICHAEL P. PINTO
                                            ------------------------------------
                                            Michael P. Pinto


   3


                                                                      Exhibit 24

                                POWER OF ATTORNEY

       KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of them
(with full power to each of them to act alone), his or her true and lawful
attorneys-in-fact and agents with full power of substitution and resubstitution,
for him or her and on his or her behalf and in his or her name, place and stead,
in any and all capacities, to sign, execute and to affix his or her seal to and
file with the Securities and Exchange Commission (or any other governmental or
regulatory authority) a registration statement on Form S-4 (or any other
appropriate form), and any and all amendments (including post-effective
amendments) thereto, with all exhibits and any and all documents required to be
filed with respect thereto, relating to the registration under the Securities
Act of 1933, as amended, of shares of the Corporation's common stock, par value
$0.50 per share, granting unto said attorneys, and each of them, full power and
authority to do and to perform each and every act and thing requisite and
necessary to be done in order to effectuate the same as fully to all intents and
purposes as he himself or she herself might or could do if personally present,
hereby ratifying and confirming all that said attorneys-in-fact and agents, or
any of them, may lawfully do or cause to be done by virtue hereof.

       IN WITNESS WHEREOF, the undersigned director and/or officer has hereunto
set his or her hand as of the date specified.


Dated: August 18, 2000


                                            /s/ MICHAEL R. SPYCHALA
                                            ------------------------------------
                                            Michael R. Spychala


   4
                                                               Exhibit 24

                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 2000



                                       /s/ WILLIAM F. ALLYN
                                       -----------------------------------
                                       William F. Allyn


   5


                                                            Exhibit 24

                              POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 2000



                                       /s/ BRENT D. BAIRD
                                       -----------------------------------
                                       Brent D. Baird


   6


                                                            Exhibit 24

                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 2000



                                       /s/ JOHN H. BENISCH
                                       -----------------------------------
                                       John H. Benisch


   7


                                                            Exhibit 24

                                POWER OF ATTORNEY


         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 2000



                                       /s/ ROBERT J. BENNETT
                                       -----------------------------------
                                       Robert J. Bennett


   8


                                                            Exhibit 24

                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 2000



                                       /s/ C. ANGELA BONTEMPO
                                       -----------------------------------
                                       C. Angela Bontempo


   9


                                                            Exhibit 24

                                POWER OF ATTORNEY


         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 2000



                                       /s/ ROBERT T. BRADY
                                       -----------------------------------
                                       Robert T. Brady


   10


                                                             Exhibit 24

                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 2000



                                       /s/ PATRICK J. CALLAN
                                       -----------------------------------
                                       Patrick J. Callan


   11

                                                            Exhibit 24


                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: October 13, 2000



                                       /s/ CARL L. CAMPBELL
                                       -----------------------------------
                                       Carl L. Campbell


   12


                                                            Exhibit 24

                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 2000



                                       /s/ R. CARLOS CARBALLADA
                                       -----------------------------------
                                       R. Carlos Carballada


   13


                                                            Exhibit 24


                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: October 13, 2000



                                              /s/ DONALD DEVORRIS
                                              -----------------------------
                                              Donald Devorris

   14



                                                                 Exhibit 24

                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 2000



                                       /s/ RICHARD E. GARMAN
                                       -----------------------------------
                                       Richard E. Garman


   15


                                                            Exhibit 24

                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 2000



                                       /s/ JAMES V. GLYNN
                                       -----------------------------------
                                       James V. Glynn


   16


                                                            Exhibit 24
                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: October 13, 2000



                                       /s/ DANIEL R. HAWBAKER
                                       -----------------------------------
                                       Daniel R. Hawbaker


   17


                                                            Exhibit 24
                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 2000



                                               /s/ PATRICK W.E. HODGSON
                                               -------------------------------
                                               Patrick W.E. Hodgson


   18


                                                            Exhibit 24
                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 2000



                                              /s/ SAMUEL T. HUBBARD, JR.
                                              --------------------------------
                                              Samuel T. Hubbard, Jr.


   19


                                                            Exhibit 24
                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: October 13, 2000



                                            /s/ RICHARD G. KING
                                            -----------------------------------
                                            Richard G. King



   20


                                                            Exhibit 24

                              POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 20000


                                    /s/ REGINALD B. NEWMAN, II
                                    --------------------------------------
                                    Reginald B. Newman, II


   21


                                                            Exhibit 24
                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 2000


                                      /s/ PETER J. O'DONNELL, JR.
                                      --------------------------------------
                                      Peter J. O'Donnell, Jr.


   22


                                                            Exhibit 24

                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 2000



                                       /s/ JORGE G. PEREIRA
                                       -----------------------------------
                                       Jorge G. Pereira


   23


                                                            Exhibit 24

                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 2000

                                   /s/ ROBERT E. SADLER, JR.
                                   ------------------------------------------
                                   Robert E. Sadler, Jr.


   24


                                                            Exhibit 24

                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: October 13, 2000



                                       /s/ STEPHEN G. SHEETZ
                                       -----------------------------------
                                       Stephen G. Sheetz


   25


                                                            Exhibit 24

                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 2000



                                       /s/ JOHN L. VENSEL
                                       -----------------------------------
                                       John L. Vensel


   26


                                                            Exhibit 24

                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned director and/or
officer of M&T Bank Corporation, a corporation organized under the laws of the
State of New York (the "Corporation"), hereby constitutes and appoints Richard
A. Lammert, Gary S. Paul, Steven L. Kaplan and Howard L. Hyde, and each of
them (with full power to each of them to act alone), his or her true and
lawful attorneys-in-fact and agents with full power of substitution and
resubstitution, for him or her and on his or her behalf and in his or her
name, place and stead, in any and all capacities, to sign, execute and to
affix his or her seal to and file with the Securities and Exchange Commission
(or any other governmental or regulatory authority) a registration statement
on Form S-4 (or any other appropriate form), and any and all amendments
(including post-effective amendments) thereto, with all exhibits and any and
all documents required to be filed with respect thereto, relating to the
registration under the Securities Act of 1933, as amended, of shares of the
Corporation's common stock, par value $0.50 per share, granting unto said
attorneys, and each of them, full power and authority to do and to perform
each and every act and thing requisite and necessary to be done in order to
effectuate the same as fully to all intents and purposes as he himself or she
herself might or could do if personally present, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, may
lawfully do or cause to be done by virtue hereof.

         IN WITNESS WHEREOF, the undersigned director and/or officer has
hereunto set his or her hand as of the date specified.


Dated: August 18, 2000



                                       /s/ HERBERT L. WASHINGTON
                                       -----------------------------------
                                       Herbert L. Washington