These photographs document the activities of the Utah State University Agricultural Extension Service from 1956 to 1983, though most of the photos are undated. The images from Union Pacific Agricultural extension train are from the 1950s, many of which were taken by Cleon Kotter. Also included are distance education from the 1980s and assorted agricultural photos on campus and in Cache Valley. The material is arranged into 11 folders comprising of candid photographs, portraits, groups of individuals, demonstrations, events and conferences, farming, landscapes, the “Union Pacific Agricultural Improvement Car,” negatives, and other assorted material.