Collection
- Hazel Marie Losh papers, 1870s-19781
- Heber Doust Curtis papers, 1889-1890, 1900-1908, 1921-19421
- Helen Belfield Bates Van Tyne Papers, 1846-1971 (majority within 1950-1966)1
- Helen Jackson Claytor papers, 1924-2005 (majority within 1955-1985)1
- Herbert F. Baker Papers, 1904-19301
- Hutchins family papers, 1837-19511
- Icie Gertrude Macy Hoobler Papers, 1914-19791
- International Neighbors records, 1958-20131
- Ira M. Smith Papers, 1919-19691
- Irene Ellis Murphy papers, 1917-19841
- Irma Bielenberg papers, 1893-19741
- Ivory Photo photograph collection, circa 1927-19711
- James Oliver Curwood papers, 1897-19271
- John C. Patterson papers, 1843-19101
- John Harvey Kellogg Papers [microform], 1832-1965 (majority within 1874-1943)1
- John Harvey Kellogg Papers, 1832-1965 (majority within 1874-1943)1
- Kathryn C. Nye papers, 1952-19671
- Kennedy family papers, 1860s-19821
- L.G. Bates General Store (Elsie, Mich.) records, 1857-19201
- Leo A. Burns photograph collection, circa 1890-circa 19151