Collection
- Safford and Sunderland Family papers, 1826-1987 (majority within 1890-1940)37
- W. B. Hinsdale papers, 1893-1942 (majority within 1922-1938)37
- Emerson Frank Greenman Papers, 1888-1984 (majority within 1924-1972)36
- WUOM records, 1913-2009 (majority within 1940-1980)36
- YMCA of Metropolitan Detroit, Metropolitan Offices records, 1877-201236
- Michigan Library Association records, 1891-199135
- Alice and Jessie Bourquin papers, 1905-199134
- Ardis Press Records, 1811-2002 (majority within 1970-1989)34
- International Organization of Good Templars records, 1855-197034
- Ludwig Family Papers, 1838-1985, 200034
- University School (University of Michigan) records, 1920-1975 (majority within 1930-1960)33
- Edson Read Sunderland Papers, 1892-1959 (majority within 1923-1953)32
- John Harvey Kellogg Papers, 1832-1965 (majority within 1874-1943)32
- LeRoy Barnett Collection, 1880-2022, and undated32
- National Microfilm Association records, 1944-1989 (majority within 1944-1973)32
- University Council (University of Michigan) records, 1931-1949, 1970-198932
- William and Charlotte Kaufman Papers, 1911-2005 (majority within 1932-2002)32
- Law School (University of Michigan) records, 1852-201031
- Manuel Luis Quezon papers, 1909-194431
- Ann Arbor Public Schools Records, 1833-201130