1 Exhibit 24.c POWER OF ATTORNEY Each officer or director whose signature appears below hereby appoints William S. Creekmuir his true and lawful attorney-in-fact to sign on his behalf, as an individual and in the capacity stated below, any amendment or post-effective amendment to this Registration Statement which said attorney-in-fact may deem appropriate or necessary. Signature Title Date --------- ----- ---- /s/Richard R. Allen Director December 1, 1998 - ------------------------------------ Richard R. Allen /s/J. Patrick Danahy Director December 1, 1998 - ------------------------------------ J. Patrick Danahy /s/Charles R. Eitel Director December 1, 1998 - ------------------------------------ Charles R. Eitel /s/David A. Jones Director December 1, 1998 - ------------------------------------ David A. Jones /s/Dr. Thomas F. Keller Director December 1, 1998 - ------------------------------------ Dr. Thomas F. Keller /s/Ian J. McCarthy Director December 1, 1998 - ------------------------------------ Ian J. McCarthy /s/Zenon S. Nie Director December 1, 1998 - ------------------------------------ Zenon S. Nie /s/L. Glenn Orr, Jr. Director December 1, 1998 - ------------------------------------ L. Glenn Orr, Jr. /s/Fred L. Schuermann, Jr. Chairman of the Board, President, December 1, 1998 - ------------------------------------ Chief Executive Officer and Director Fred L. Schuermann, Jr. /s/William S. Creekmuir Executive Vice President, December 1, 1998 - ------------------------------------ Secretary, Treasurer and Chief William S. Creekmuir Financial Officer /s/Daryl B. Adams Vice President, Corporate December 1, 1998 - ------------------------------------ Controller, Assistant Secretary and Daryl B. Adams Assistant Treasurer (Principal Accounting Officer)