Collection
- Pierson Family papers, 1821-199636
- Safford and Sunderland Family papers, 1826-1987 (majority within 1890-1940)35
- Chase S. Osborn Papers, circa 1870-1949 (majority within 1889-1949)34
- LeRoy Barnett Collection, 1880-2022, and undated32
- Louis Sands Salt and Lumber Company (Manistee, Mich.) records, 1863-193231
- Episcopal Church, Diocese of Western Michigan records, 1851-201130
- Wisconsin Land & Lumber Company records, 1871-192030
- Alumni Association (University of Michigan) records, 1845-200128
- Church of Jesus Christ (Strangite) Collection, 1843-1982, and undated28
- First Unitarian-Universalist Church of Detroit Records, 1845-201228
- Athletic Department (University of Michigan) records, 1860-201727
- Henry Bool correspondence, 1895-192127
- United Church of Christ. Michigan Conference records, 1840-201326
- Hannah and Lay Company (Traverse City, Mich.) Records, 1846-193125
- [Miscellaneous brochures, pamphlets, etc.], circa 1880-195025
- Battle Creek Food Company [Miscellaneous printed items], circa 1900-193824
- Jacob Ellsworth Reighard Papers, 1887-1942 (majority within 1890-1920)24
- Michigan State Grange Records, 1873-200524
- Ruggles & Rademaker records, 1868-193124
- Thomas B. Buell family papers, 1840-2000 (majority within 1872-1942)24