Collection
- Daughters of the American Revolution of Michigan records, 1893-201473
- Ann Arbor Township Records, 1820s-199671
- W. B. Hinsdale papers, 1893-1942 (majority within 1922-1938)71
- School of Information (University of Michigan) records, 1904-2014 (majority within 1926-1994)63
- Varsinais-Suomi Region immigrant letters, 1880-196663
- Athletic Department (University of Michigan) records, 1860-201762
- Theodore H. Hubbell papers, 1833-1988 (majority within 1852-1970)60
- Middle English Dictionary records, 1925-200859
- Michigan State Grange Records, 1873-200558
- North Central Association of Colleges and Schools, Michigan State Office, Records, 1895-1994 (majority within 1919-1994)57
- College of Engineering (University of Michigan) records, 1860-201456
- School for Environment and Sustainability (University of Michigan) records, 1903 - 201256
- Jens Jensen drawings and papers, 1903-1951 (majority within 1910-1934)53
- Lewis Burnett Kellum papers, 1837-1995 (majority within 1920-1969)53
- Camilla and Ethel Green Family Papers, 1827-1988 (majority within 1910-1955)49
- Alumni Association (University of Michigan) records, 1845-200147
- Episcopal Church, Diocese of Western Michigan records, 1851-201147
- Financial Operations (University of Michigan) records, 1837-2004 (majority within 1915-1990)46
- Joseph Ralston Hayden Papers, 1854-197546
- Angela Morgan Papers, 1861-195745