Fonds consists of unpublished typescripts and manuscripts by Robert Alden Sanborn. Influenced by the work of Carl Jung, the unpublished works are predominantly related to Sanborn's interest in the social development of children and several of the drafts consist of narratives about young girls referred to as "Little Anna" and "Bunty". Also included is collected ephemera and correspondence between Sanborn and his family, colleagues and publishing contacts, including his editor Olive Burchfiel (1888-1960), as well as writing by Sanborn's mother, Mary Farley Sanborn, including a published version of "The Valor Ranch" (1914); a typescript version of the poem "My Eighth of May"; and a clipping of the poem "The Barrel-Stave."