Includes Department of Rural Sociology annual reports to the dean and budget records, 1918-1946; department research and extension reports; Larson's correspondence as head of the department, 1957-1966, and later correspondence; records of University committees chaired by Larson; material relating to the Rural Sociological Society; department historical material; other papers of Olaf Frederick Larson; and "A Fulbright Year in Italy, 1961-1962," a typescript version of the diary Larson kept.

Also, York Migrant Agricultural Working Studies (1957-1959); New York Community Study records (1924, 1930, 1936, 1974); other community studies; and files on the Northeast Regional Center for Rural Development (1972-1975).