EXHIBIT 24 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each person whose name appears below constitutes and appoints Robert B. Terry and John F. Berardi, and each of them, his true and lawful attorney-in-fact and agent with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this Registration Statement, as well as any related registration statement (or amendments thereto) filed pursuant to Rule 462(b) promulgated under the Securities Act of 1933, and 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, and each of them, 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 attorneys-in-fact and agents or any of them or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. This Power of Attorney may be executed in multiple counterparts, each of which shall be deemed an original, but which taken together shall constitute one instrument. PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THIS REGISTRATION STATEMENT HAS BEEN SIGNED BY THE FOLLOWING PERSONS IN THE CAPACITIES AND ON THE DATES INDICTED. Signature Title Date ALBERT J. SHIVLEY Chairman of Board and October 25, 1995 Albert J. Shivley Director H. D. CLEBERG President, Chief Executive October 25, 1995 H. D. Cleberg Officer and Director (Principal Executive Officer) OTIS H. MOLZ Vice Chairman of Board October 25, 1995 Otis H. Molz and Director LYMAN ADAMS, JR. Director October 25, 1995 Lyman Adams, Jr. RONALD J. AMUNDSON Director October 25, 1995 Ronald J. Amundson BAXTER ANKERSTJERNE Director October 25, 1995 Baxter Ankerstjerne JODY BEZNER Director October 25, 1995 Jody Bezner RICHARD L. DETTEN Director October 25, 1995 Richard L. Detten STEVEN ERDMAN Director October 25, 1995 Steven Erdman WARREN GERDES Director October 25, 1995 Warren Gerdes BEN GRIFFITH Director October 25, 1995 Ben Griffith GAIL D. HALL Director October 25, 1995 Gail D. Hall JEROME HEUERTZ Director October 25, 1995 Jerome Heuertz BARRY JENSEN Director October 25, 1995 Barry Jensen GREG PFENNING Director October 25, 1995 Greg Pfenning VONN RICHARDSON Director October 25, 1995 Vonn Richardson MONTE ROMOHR Director October 25, 1995 Monte Romohr JOE ROYSTER Director October 25, 1995 Joe Royster PAUL RUEDINGER Director October 25, 1995 Paul Ruedinger RAYMOND J. SCHMITZ Director October 25, 1995 Raymond J. Schmitz THEODORE J. WEHRBEIN Director October 25, 1995 Theodore J. Wehrbein ROBERT ZINKULA Director October 25, 1995 Robert Zinkula