The Frederick, Robert A. mss., 1880-1993, consist of photographs, clippings, scrapbooks, and research materials gathered and written by historian Robert A. Frederick about conservationist Richard Lieber.
The Mackenzie, A. mss. consist of correspondence by nurse Anna Mackenzie, as well as research materials and transcriptions gathered by author Larita Killian.
The Schab, William H. mss, dates unknown, consist of auction and dealer catalog clippings, mainly focusing on German-speaking cities and works from the 15th and 16th centuries.
The Obscure Publications mss., dates unknown, consist of the correspondence and business files of Obscure Publications, primarily involving editor/publisher Paul Rosheim.
The Brochmann, Elisabeth mss., circa 1910-1917, consist of letters and related material addressed to Norwegian literary translator Elisabeth Brochmann (1858-1915), best known for her translations of Sir Arthur Conan Doyle.