Contact Us  University of Missouri Extension Contact: Roger Eakins 684 Jackson Trail P.O. Box 408 Jackson, MO 63755 United States Phone: 573-243-3581 Fax: 573-243-1606 eakinsr@missouri.edu Click here to contact Roger for more information. SALES MANAGER Darrell Aufdenberg 970 PCR 514 Perryville MO 63775 Telephone: 573-517-0395 Bull sale: Sale Day Phone: 573-756-5769 Heifer sale: Sale Day Phone: 573-243-4255   Click below to contact the Web master. Web master: widemanf@missouri.edu