Abstract Charles P. Loomis was a sociologist, university professor and author whose textbooks on rural sociology became standards in their field. He conducted sociological research in Tortugas, New Mexico in the late 1930s, while working for the United States Department of Agriculture, and at El Cerrito, New Mexico in 1940 and 1956. The collection comprises Loomis' research papers for the El Cerrito study, including diaries, correspondence, statistics and photographs, as well as some of Loomis'...