Collection
- Harlan Henthorne Hatcher Papers, 1837-1998 (majority within 1891-1986)2,570
- Penn Central Transportation Company Records, 1835-1981 (majority within 1835-1960)2,505
- Department of Afroamerican and African Studies (University of Michigan) records, 1966-2010 (majority within 1970-1994)2,479
- Sam Sturgis photograph collection, 1860s-1970s2,455
- News and Information Services (University of Michigan) photographs, 1946-20062,396
- Gunnar Birkerts papers, 1930-20172,395
- Jens Jensen drawings and papers, 1903-1951 (majority within 1910-1934)2,373
- Gerald L. K. Smith Papers, 1922-19762,319
- A. Alfred Taubman College of Architecture and Urban Planning (University of Michigan) records, 1876-20112,300
- University of Michigan student portraits, circa 1860-1950 (majority within 1870-1920)2,287
- Office of Academic Human Resources (University of Michigan) promotion casebooks, 1961-20212,277
- Bentley Historical Library records, 1919 - 2023 (majority within 1970 - 2013)2,202
- William D. Ford papers, 1955-1995 (majority within 1965-1995)2,151
- Vice President for Development (University of Michigan) records, 1948 - 20042,088
- Institute for Social Research (University of Michigan) records, 1936-2017 (scattered) (majority within 1946-2010)2,086
- College of Engineering (University of Michigan) records, 1860-20142,083
- Michigan Memorial Phoenix Project records, 1947-2003 (majority within 1950-1980)2,082
- Episcopal Church, Diocese of Western Michigan records, 1851-20112,080
- Programs for Educational Opportunity (University of Michigan) records, 1969-2002 (majority within 1970-1986)2,014
- School for Environment and Sustainability (University of Michigan) records, 1903 - 20122,004