Exhibit 24.0
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes and appoints Walter D. Bay and Douglas K. Howell his true and lawful attorneys-in-fact and agents, for him, and in his name, place and stead, in any and all capacities (i) to sign the Arthur J. Gallagher & Co. Annual Report on Form 10-K for the fiscal year ending December 31, 2007 and any and all amendments thereto and (ii) to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done in such connection, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, may lawfully do or cause to be done by virtue hereof.
IN WITNESS WHEREOF, the undersigned has duly executed this instrument as of this 1st day of February, 2008.
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| /s/ WILLIAM L. BAX |
| William L. Bax |
Exhibit 24.0
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes and appoints Walter D. Bay and Douglas K. Howell his true and lawful attorneys-in-fact and agents, for him, and in his name, place and stead, in any and all capacities (i) to sign the Arthur J. Gallagher & Co. Annual Report on Form 10-K for the fiscal year ending December 31, 2007 and any and all amendments thereto and (ii) to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done in such connection, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, may lawfully do or cause to be done by virtue hereof.
IN WITNESS WHEREOF, the undersigned has duly executed this instrument as of this 1st day of February, 2008.
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| /s/ T. KIMBALL BROOKER |
| T. Kimball Brooker |
Exhibit 24.0
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes and appoints Walter D. Bay and Douglas K. Howell his true and lawful attorneys-in-fact and agents, for him, and in his name, place and stead, in any and all capacities (i) to sign the Arthur J. Gallagher & Co. Annual Report on Form 10-K for the fiscal year ending December 31, 2007 and any and all amendments thereto and (ii) to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done in such connection, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, may lawfully do or cause to be done by virtue hereof.
IN WITNESS WHEREOF, the undersigned has duly executed this instrument as of this 1st day of February, 2008.
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| /s/ GARY P. COUGHLAN |
| Gary P. Coughlan |
Exhibit 24.0
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes and appoints Walter D. Bay and Douglas K. Howell her true and lawful attorneys-in-fact and agents, for her, and in her name, place and stead, in any and all capacities (i) to sign the Arthur J. Gallagher & Co. Annual Report on Form 10-K for the fiscal year ending December 31, 2007 and any and all amendments thereto and (ii) to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done in such connection, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, may lawfully do or cause to be done by virtue hereof.
IN WITNESS WHEREOF, the undersigned has duly executed this instrument as of this 1st day of February, 2008.
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| /s/ ILENE S. GORDON |
| Ilene S. Gordon |
Exhibit 24.0
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes and appoints Walter D. Bay and Douglas K. Howell his true and lawful attorneys-in-fact and agents, for him, and in his name, place and stead, in any and all capacities (i) to sign the Arthur J. Gallagher & Co. Annual Report on Form 10-K for the fiscal year ending December 31, 2007 and any and all amendments thereto and (ii) to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done in such connection, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, may lawfully do or cause to be done by virtue hereof.
IN WITNESS WHEREOF, the undersigned has duly executed this instrument as of this 1st day of February, 2008.
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| /s/ ELBERT O. HAND |
| Elbert O. Hand |
Exhibit 24.0
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes and appoints Walter D. Bay and Douglas K. Howell his true and lawful attorneys-in-fact and agents, for him, and in his name, place and stead, in any and all capacities (i) to sign the Arthur J. Gallagher & Co. Annual Report on Form 10-K for the fiscal year ending December 31, 2007 and any and all amendments thereto and (ii) to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done in such connection, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, may lawfully do or cause to be done by virtue hereof.
IN WITNESS WHEREOF, the undersigned has duly executed this instrument as of this 1st day of February, 2008.
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| /s/ DAVID S. JOHNSON |
| David S. Johnson |
Exhibit 24.0
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes and appoints Walter D. Bay and Douglas K. Howell her true and lawful attorneys-in-fact and agents, for her, and in her name, place and stead, in any and all capacities (i) to sign the Arthur J. Gallagher & Co. Annual Report on Form 10-K for the fiscal year ending December 31, 2007 and any and all amendments thereto and (ii) to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done in such connection, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, may lawfully do or cause to be done by virtue hereof.
IN WITNESS WHEREOF, the undersigned has duly executed this instrument as of this 1st day of February, 2008.
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| /S/ KAY W. MCCURDY |
| Kay W. McCurdy |
Exhibit 24.0
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes and appoints Walter D. Bay and Douglas K. Howell his true and lawful attorneys-in-fact and agents, for him, and in his name, place and stead, in any and all capacities (i) to sign the Arthur J. Gallagher & Co. Annual Report on Form 10-K for the fiscal year ending December 31, 2007 and any and all amendments thereto and (ii) to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done in such connection, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, may lawfully do or cause to be done by virtue hereof.
IN WITNESS WHEREOF, the undersigned has duly executed this instrument as of this 1st day of February, 2008.
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| /s/ NORMAN L. ROSENTHAL |
| Norman L. Rosenthal |
Exhibit 24.0
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes and appoints Walter D. Bay and Douglas K. Howell his true and lawful attorneys-in-fact and agents, for him, and in his name, place and stead, in any and all capacities (i) to sign the Arthur J. Gallagher & Co. Annual Report on Form 10-K for the fiscal year ending December 31, 2007 and any and all amendments thereto and (ii) to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done in such connection, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, may lawfully do or cause to be done by virtue hereof.
IN WITNESS WHEREOF, the undersigned has duly executed this instrument as of this 1st day of February, 2008.
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| /s/ JAMES R. WIMMER |
| James R. Wimmer |
