EX-24.1 7 a2054558zex-24_1.txt EXHIBIT 24.1 Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below constitutes and appoints Patrick G. Ryan, Michael D. O'Halleran, Harvey N. Medvin and Raymond I. Skilling, and each of them individually, with full power to act without the others, as the undersigned's true and lawful attorneys-in-fact and agents, with full and several power of substitution and resubstitution for the undersigned and in the undersigned's name, place and stead, in any and all capacities, to sign a registration statement on Form S-3 or Form S-4 relating to the registration by Aon Corporation of up to 2,000,000 shares of Aon Corporation common stock, $1.00 per value per share in connection with the acquisition of all of the outstanding capital stock of First Extended, Inc.. and any and all amendments and supplements thereto ( including pre-effective and post-effective amendments) to such registration statement, and to file the same, with all exhibits thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, and any and all documents relating to the qualification or registration under state Blue Sky or securities laws of such securities, granting unto such attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, 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 or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has signed his name effective as of July 19, 2001. /s/ Patrick G. Ryan ------------------------------------ Patrick G. Ryan POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below constitutes and appoints Patrick G. Ryan, Michael D. O'Halleran, Harvey N. Medvin and Raymond I. Skilling, and each of them individually, with full power to act without the others, as the undersigned's true and lawful attorneys-in-fact and agents, with full and several power of substitution and resubstitution for the undersigned and in the undersigned's name, place and stead, in any and all capacities, to sign a registration statement on Form S-3 or Form S-4 relating to the registration by Aon Corporation of up to 2,000,000 shares of Aon Corporation common stock, $1.00 per value per share in connection with the acquisition of all of the outstanding capital stock of First Extended, Inc.. and any and all amendments and supplements thereto ( including pre-effective and post-effective amendments) to such registration statement, and to file the same, with all exhibits thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, and any and all documents relating to the qualification or registration under state Blue Sky or securities laws of such securities, granting unto such attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, 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 or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has signed his name effective as of July 19, 2001. /s/ Franklin A. Cole ------------------------------------------ Franklin A. Cole POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below constitutes and appoints Patrick G. Ryan, Michael D. O'Halleran, Harvey N. Medvin and Raymond I. Skilling, and each of them individually, with full power to act without the others, as the undersigned's true and lawful attorneys-in-fact and agents, with full and several power of substitution and resubstitution for the undersigned and in the undersigned's name, place and stead, in any and all capacities, to sign a registration statement on Form S-3 or Form S-4 relating to the registration by Aon Corporation of up to 2,000,000 shares of Aon Corporation common stock, $1.00 per value per share in connection with the acquisition of all of the outstanding capital stock of First Extended, Inc.. and any and all amendments and supplements thereto ( including pre-effective and post-effective amendments) to such registration statement, and to file the same, with all exhibits thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, and any and all documents relating to the qualification or registration under state Blue Sky or securities laws of such securities, granting unto such attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, 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 or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has signed his name effective as of July 19, 2001. /s/ Edgar D. Jannotta -------------------------------------- Edgar D. Jannotta POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below constitutes and appoints Patrick G. Ryan, Michael D. O'Halleran, Harvey N. Medvin and Raymond I. Skilling, and each of them individually, with full power to act without the others, as the undersigned's true and lawful attorneys-in-fact and agents, with full and several power of substitution and resubstitution for the undersigned and in the undersigned's name, place and stead, in any and all capacities, to sign a registration statement on Form S-3 or Form S-4 relating to the registration by Aon Corporation of up to 2,000,000 shares of Aon Corporation common stock, $1.00 per value per share in connection with the acquisition of all of the outstanding capital stock of First Extended, Inc.. and any and all amendments and supplements thereto ( including pre-effective and post-effective amendments) to such registration statement, and to file the same, with all exhibits thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, and any and all documents relating to the qualification or registration under state Blue Sky or securities laws of such securities, granting unto such attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, 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 or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has signed his name effective as of July 19, 2001. /s/ Lester B. Knight ------------------------------------ Lester B. Knight POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below constitutes and appoints Patrick G. Ryan, Michael D. O'Halleran, Harvey N. Medvin and Raymond I. Skilling, and each of them individually, with full power to act without the others, as the undersigned's true and lawful attorneys-in-fact and agents, with full and several power of substitution and resubstitution for the undersigned and in the undersigned's name, place and stead, in any and all capacities, to sign a registration statement on Form S-3 or Form S-4 relating to the registration by Aon Corporation of up to 2,000,000 shares of Aon Corporation common stock, $1.00 per value per share in connection with the acquisition of all of the outstanding capital stock of First Extended, Inc.. and any and all amendments and supplements thereto ( including pre-effective and post-effective amendments) to such registration statement, and to file the same, with all exhibits thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, and any and all documents relating to the qualification or registration under state Blue Sky or securities laws of such securities, granting unto such attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, 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 or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has signed his name effective as of July 19, 2001. /s/ Perry J. Lewis -------------------------------- Perry J. Lewis POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below constitutes and appoints Patrick G. Ryan, Michael D. O'Halleran, Harvey N. Medvin and Raymond I. Skilling, and each of them individually, with full power to act without the others, as the undersigned's true and lawful attorneys-in-fact and agents, with full and several power of substitution and resubstitution for the undersigned and in the undersigned's name, place and stead, in any and all capacities, to sign a registration statement on Form S-3 or Form S-4 relating to the registration by Aon Corporation of up to 2,000,000 shares of Aon Corporation common stock, $1.00 per value per share in connection with the acquisition of all of the outstanding capital stock of First Extended, Inc.. and any and all amendments and supplements thereto ( including pre-effective and post-effective amendments) to such registration statement, and to file the same, with all exhibits thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, and any and all documents relating to the qualification or registration under state Blue Sky or securities laws of such securities, granting unto such attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, 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 or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has signed his name effective as of July 19, 2001. /s/ Andrew J. McKenna ----------------------------------- Andrew J. McKenna POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below constitutes and appoints Patrick G. Ryan, Michael D. O'Halleran, Harvey N. Medvin and Raymond I. Skilling, and each of them individually, with full power to act without the others, as the undersigned's true and lawful attorneys-in-fact and agents, with full and several power of substitution and resubstitution for the undersigned and in the undersigned's name, place and stead, in any and all capacities, to sign a registration statement on Form S-3 or Form S-4 relating to the registration by Aon Corporation of up to 2,000,000 shares of Aon Corporation common stock, $1.00 per value per share in connection with the acquisition of all of the outstanding capital stock of First Extended, Inc.. and any and all amendments and supplements thereto ( including pre-effective and post-effective amendments) to such registration statement, and to file the same, with all exhibits thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, and any and all documents relating to the qualification or registration under state Blue Sky or securities laws of such securities, granting unto such attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, 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 or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has signed his name effective as of July 19, 2001. /s/ Richard C. Notebaert -------------------------------------- Richard C. Notebaert POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below constitutes and appoints Patrick G. Ryan, Michael D. O'Halleran, Harvey N. Medvin and Raymond I. Skilling, and each of them individually, with full power to act without the others, as the undersigned's true and lawful attorneys-in-fact and agents, with full and several power of substitution and resubstitution for the undersigned and in the undersigned's name, place and stead, in any and all capacities, to sign a registration statement on Form S-3 or Form S-4 relating to the registration by Aon Corporation of up to 2,000,000 shares of Aon Corporation common stock, $1.00 per value per share in connection with the acquisition of all of the outstanding capital stock of First Extended, Inc.. and any and all amendments and supplements thereto ( including pre-effective and post-effective amendments) to such registration statement, and to file the same, with all exhibits thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, and any and all documents relating to the qualification or registration under state Blue Sky or securities laws of such securities, granting unto such attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, 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 or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has signed his name effective as of July 19, 2001. /s/ Michael D. O'Halleran -------------------------------------- Michael D. O'Halleran POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below constitutes and appoints Patrick G. Ryan, Michael D. O'Halleran, Harvey N. Medvin and Raymond I. Skilling, and each of them individually, with full power to act without the others, as the undersigned's true and lawful attorneys-in-fact and agents, with full and several power of substitution and resubstitution for the undersigned and in the undersigned's name, place and stead, in any and all capacities, to sign a registration statement on Form S-3 or Form S-4 relating to the registration by Aon Corporation of up to 2,000,000 shares of Aon Corporation common stock, $1.00 per value per share in connection with the acquisition of all of the outstanding capital stock of First Extended, Inc.. and any and all amendments and supplements thereto ( including pre-effective and post-effective amendments) to such registration statement, and to file the same, with all exhibits thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, and any and all documents relating to the qualification or registration under state Blue Sky or securities laws of such securities, granting unto such attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, 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 or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has signed his name effective as of July 19, 2001. /s/ Donald S. Perkins ---------------------------------------- Donald S. Perkins POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below constitutes and appoints Patrick G. Ryan, Michael D. O'Halleran, Harvey N. Medvin and Raymond I. Skilling, and each of them individually, with full power to act without the others, as the undersigned's true and lawful attorneys-in-fact and agents, with full and several power of substitution and resubstitution for the undersigned and in the undersigned's name, place and stead, in any and all capacities, to sign a registration statement on Form S-3 or Form S-4 relating to the registration by Aon Corporation of up to 2,000,000 shares of Aon Corporation common stock, $1.00 per value per share in connection with the acquisition of all of the outstanding capital stock of First Extended, Inc.. and any and all amendments and supplements thereto ( including pre-effective and post-effective amendments) to such registration statement, and to file the same, with all exhibits thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, and any and all documents relating to the qualification or registration under state Blue Sky or securities laws of such securities, granting unto such attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, 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 or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has signed his name effective as of July 19, 2001. /s/ John W. Rogers, Jr. ------------------------------------ John W. Rogers, Jr. POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below constitutes and appoints Patrick G. Ryan, Michael D. O'Halleran, Harvey N. Medvin and Raymond I. Skilling, and each of them individually, with full power to act without the others, as the undersigned's true and lawful attorneys-in-fact and agents, with full and several power of substitution and resubstitution for the undersigned and in the undersigned's name, place and stead, in any and all capacities, to sign a registration statement on Form S-3 or Form S-4 relating to the registration by Aon Corporation of up to 2,000,000 shares of Aon Corporation common stock, $1.00 per value per share in connection with the acquisition of all of the outstanding capital stock of First Extended, Inc.. and any and all amendments and supplements thereto ( including pre-effective and post-effective amendments) to such registration statement, and to file the same, with all exhibits thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, and any and all documents relating to the qualification or registration under state Blue Sky or securities laws of such securities, granting unto such attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, 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 or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has signed his name effective as of July 19, 2001. /s/ George A. Schaefer ----------------------------------- George A. Schaefer POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below constitutes and appoints Patrick G. Ryan, Michael D. O'Halleran, Harvey N. Medvin and Raymond I. Skilling, and each of them individually, with full power to act without the others, as the undersigned's true and lawful attorneys-in-fact and agents, with full and several power of substitution and resubstitution for the undersigned and in the undersigned's name, place and stead, in any and all capacities, to sign a registration statement on Form S-3 or Form S-4 relating to the registration by Aon Corporation of up to 2,000,000 shares of Aon Corporation common stock, $1.00 per value per share in connection with the acquisition of all of the outstanding capital stock of First Extended, Inc.. and any and all amendments and supplements thereto ( including pre-effective and post-effective amendments) to such registration statement, and to file the same, with all exhibits thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, and any and all documents relating to the qualification or registration under state Blue Sky or securities laws of such securities, granting unto such attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, 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 or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has signed his name effective as of July 19, 2001. /s/ Raymond I. Skilling ----------------------------------- Raymond I. Skilling POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below constitutes and appoints Patrick G. Ryan, Michael D. O'Halleran, Harvey N. Medvin and Raymond I. Skilling, and each of them individually, with full power to act without the others, as the undersigned's true and lawful attorneys-in-fact and agents, with full and several power of substitution and resubstitution for the undersigned and in the undersigned's name, place and stead, in any and all capacities, to sign a registration statement on Form S-3 or Form S-4 relating to the registration by Aon Corporation of up to 2,000,000 shares of Aon Corporation common stock, $1.00 per value per share in connection with the acquisition of all of the outstanding capital stock of First Extended, Inc.. and any and all amendments and supplements thereto ( including pre-effective and post-effective amendments) to such registration statement, and to file the same, with all exhibits thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, and any and all documents relating to the qualification or registration under state Blue Sky or securities laws of such securities, granting unto such attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, 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 or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has signed his name effective as of July 19, 2001. /s/ Fred L. Turner ----------------------------------- Fred L. Turner POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below constitutes and appoints Patrick G. Ryan, Michael D. O'Halleran, Harvey N. Medvin and Raymond I. Skilling, and each of them individually, with full power to act without the others, as the undersigned's true and lawful attorneys-in-fact and agents, with full and several power of substitution and resubstitution for the undersigned and in the undersigned's name, place and stead, in any and all capacities, to sign a registration statement on Form S-3 or Form S-4 relating to the registration by Aon Corporation of up to 2,000,000 shares of Aon Corporation common stock, $1.00 per value per share in connection with the acquisition of all of the outstanding capital stock of First Extended, Inc.. and any and all amendments and supplements thereto ( including pre-effective and post-effective amendments) to such registration statement, and to file the same, with all exhibits thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, and any and all documents relating to the qualification or registration under state Blue Sky or securities laws of such securities, granting unto such attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, 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 or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has signed his name effective as of July 19, 2001. /s/ Arnold R. Weber ------------------------------------- Arnold R. Weber POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears below constitutes and appoints Patrick G. Ryan, Michael D. O'Halleran, Harvey N. Medvin and Raymond I. Skilling, and each of them individually, with full power to act without the others, as the undersigned's true and lawful attorneys-in-fact and agents, with full and several power of substitution and resubstitution for the undersigned and in the undersigned's name, place and stead, in any and all capacities, to sign a registration statement on Form S-3 or Form S-4 relating to the registration by Aon Corporation of up to 2,000,000 shares of Aon Corporation common stock, $1.00 per value per share in connection with the acquisition of all of the outstanding capital stock of First Extended, Inc.. and any and all amendments and supplements thereto ( including pre-effective and post-effective amendments) to such registration statement, and to file the same, with all exhibits thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, and any and all documents relating to the qualification or registration under state Blue Sky or securities laws of such securities, granting unto such attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises, 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 or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. IN WITNESS WHEREOF, the undersigned has signed his name effective as of July 19, 2001. /s/ Carolyn Y. Woo ---------------------------------------- Carolyn Y. Woo