This collection contains information on St. Peter State Hospital from 1855 through 1974, including General hospital history, 1856-1974; Buildings and grounds, 1855-1972; Library, 1867-1972; and Volumes, 1866-1952. The General hospital history includes newspaper clippings, photographs, correspondence, reports, research notes, and numerous other items. The Buildings and grounds section contains photographs, blueprints, and information about the institution's property and facilities. Information about the library's collections and activities includes photographs of events and individuals, and correspondence and reports. Volumes contain information regarding the institution's spending proclivities, patient account records, and other information.