Collection
- Michigan State Grange Records, 1873-200535
- Athletic Department (University of Michigan) records, 1860-201734
- Episcopal Church, Diocese of Western Michigan records, 1851-201133
- Alumni Association (University of Michigan) records, 1845-200131
- Wisconsin Land & Lumber Company records, 1871-192031
- Treasurer (University of Michigan) records, 1839-192029
- Hannah and Lay Company (Traverse City, Mich.) Records, 1846-193128
- Post Family Papers, 1882-197328
- Ruggles & Rademaker records, 1868-193128
- Albert Kahn Associates records, 1825-2014 (majority within 1900-1945)27
- Ann Arbor Public Schools Records, 1833-201127
- James and Sybil Irwin family papers, 1815-1987 (majority within 1832-1946)27
- Satakunta Region immigrant letters, 1880-196427
- United Church of Christ. Michigan Conference records, 1840-201326
- [Miscellaneous brochures, pamphlets, etc.], circa 1880-195026
- Claude Thomas Stoner Photographs and Papers, 1870s-197725
- William Herbert Hobbs papers, 1880-1955 (majority within 1905-1951)25
- Ann Arbor (Mich.) records, 1830-200224
- Arnold Transit Company records, 1854-1987 (majority within 1900-1970)24
- Battle Creek Food Company [Miscellaneous printed items], circa 1900-193824