T. Rowe Price (TROW) S-8 POS Registration of securities for employees (post-effective amendment)

EXHIBIT 24

T. ROWE PRICE GROUP, INC.

POWER OF ATTORNEY

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned directors and officers of T. Rowe Price Group, Inc., a Maryland corporation, constitute and appoint George A. Roche, Joseph P. Croteau and Barbara A. Van Horn, or any one of them, the true and lawful agents and attorneys-in-fact of the undersigned with full power and authority in said agents and attorneys-in-fact, and in any one or more of them, to sign for the undersigned in their respective names as directors and officers of T.Rowe Price Group, Inc., its Registration Statement on Form S-8, any amendment (including post-effective amendments) or supplement thereto, and any Post-Effective Amendments to Registration Statements on Form S-8, relating to the offer and sale of common stock of T. Rowe Price Group, Inc. pursuant to the 2004 Stock Incentive Plan, its Registration Statement on Form S-8, any amendment (including post-effective amendments) or supplement thereto, and any Post-Effective Amendments to Registration Statements on Form S-8, relating to the offer and sale of common stock of T. Rowe Price Group, Inc. pursuant to the 2001 Stock Incentive Plan, its Post-Effective Amendment No. 3 to Form S-8 for the 1996 Stock Incentive Plan, its Post-Effective Amendment No. 3 to Form S-8 for the 1993 Stock Incentive Plan, and its Post-Effective Amendment No. 2 to Form S-8 for the 1990 Stock Incentive Plan, to be filed with the Securities and Exchange Commission under the Securities Act of 1933. We hereby confirm all acts taken by such agents and attorneys-in-fact, or any one or more of them, as herein authorized.

Signature	Title	Date
/s/ George A. Roche George A. Roche	Chairman of the Board and President (Principal Executive Officer)	December 1, 2004
/s/ Kenneth V. Moreland Kenneth V. Moreland	Chief Financial Officer (Principal Financial Officer)	December 1, 2004
/s/ Joseph P. Croteau Joseph P. Croteau	Treasurer (Principal Accounting Officer)	December 1, 2004
/s/ Edward C. Bernard Edward C. Bernard	Director	December 1, 2004
/s/ James T. Brady James T. Brady	Director	December 1, 2004
/s/ J. Alfred Broaddus, Jr. J. Alfred Broaddus, Jr.	Director	December 1, 2004
/s/ D. William J. Garrett D. William J. Garrett	Director	December 1, 2004
/s/ Donald B. Hebb, Jr. Donald B. Hebb, Jr.	Director	December 1, 2004
/s/ James A.C. Kennedy James A.C. Kennedy	Director	December 1, 2004

Signature	Title	Date
/s/ James S. Riepe James S. Riepe	Director	December 1, 2004
/s/ Brian C. Rogers Brian C. Rogers	Director	December 1, 2004
/s/ Dr. Alfred Sommer Dr. Alfred Sommer	Director	December 1, 2004
/s/ Dwight S. Taylor Dwight S. Taylor	Director	December 1, 2004
/s/ Anne Marie Whittemore Anne Marie Whittemore	Director	December 1, 2004