POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Robert C. Walker his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and his name, place and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this registration statement (or any other registration statement for the same offering that is to be effective upon filing pursuant to Rule 462(b) under the Securities Act), and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent or his substitutes, may lawfully do or cause to be done by virtue hereof. Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities indicated on the 21st day of April, 1998. (Signature) (Title) (Date) ----------- ------- ------ /s/ Gordon W. Kreh President, Chief April 21, 1998 Gordon W. Kreh Executive Officer and Director /s/ Joel B. Alvord Joel B. Alvord Director April 21, 1998 /s/ Richard H. Booth Richard H. Booth Director April 21, 1998 /s/ Colin G. Campbell Colin G. Campbell Director April 21, 1998 /s/ Richard G. Dooley Richard G. Dooley Director April 21, 1998 (Signature) (Title) (Date) - ----------- ------- ------ /s/ William B. Ellis William B. Ellis Director April 21, 1998 /s/ Simon W. Leathes Simon W. Leathes Director April 21, 1998 /s/ Lois D. Rice Lois D. Rice Director April 21, 1998 /s/ John M. Washburn, Jr. John M. Washburn, Jr. Director April 21, 1998 /s/ Wilson Wilde Wilson Wilde Director April 21, 1998