The Ida Langdon Papers contain an assortment of teaching and lecture materials from her early tenure as a professor of English Literature at Elmira College, including collegiate materials from her matriculation at Bryn Mawr College. The collection also includes materials from Dr. Lane Cooper, a professor at Cornell University where Langdon received her Doctorate and various letters of correspondence and newspaper clippings. Items concerning her association with her uncle, Mark Twain, are at a minimum.

A collection of materials from Albany resident William Gorham Rice, mostly related to his interest in and publications on the subject of the Carillon Bell.

William Law Learned Peltz, (1882-1961), was a graduate of the Albany Academy, Yale and the Albany Law School. This collection consists of clippings, transcriptions, journal articles, receipts, letterheads, correspondence, postcards, photographs, pamphlets and prints.