The Herbert Osborn Papers contain professional correspondence related to entomology, biographical information about Herbert Osborn, clippings, and other papers related to Osborn's faculty position and appointment as director of the Ohio Biological Survey.

The Alvah Peterson Papers contain biographical files, including obituaries and an award from American Letters. It also contains published and unpublished writings, correspondence with a former student, and cash journals concerning the sale of his books.

The John C. Lotze Papers contain items from Lotze's professional career, such as correspondence and clippings.

The Dwight Moore Delong Papers contain reprints of Delong's writings and articles, correspondence, and a history of the Department of Zoology and Entomology published in the OSU Centennial Series.

The Ohio State University, Columbus Entomological Society Records contain minutes, membership lists, reports, and other administrative files. Collection materials are dated 1936-1966.