The Hovey mss., 1841-1927, consist of letters and papers of Alvin Peterson Hovey, 1821-1891, governor of Indiana, and correspondence of his daughter, Mrs. Esther (Hovey) Menzies, and Mrs. Deidre Dorothy (Duff) Johnson.
The Cleghorn mss., 1826-1893, consists of correspondence and papers of Indian trader William W. Cleghorn, 1815-1878, and material pertaining to his estate.
The Indiana History mss., 1725-1973, consists of individual items related to the history of the state of Indiana, acquired separately either as a gift, purchase, transfer, or removal from a variety of sources.