Collection
- Jane Briggs Hart papers, circa 1925-19961
- Jeep Holland papers, 1943-19981
- Jerald F. terHorst papers, 1937-2009 (majority within 1972-2009)1
- John B. Bruff papers, 19661
- John B. Swainson Papers, 1943-1975 (majority within 1960-1962)1
- John Butlin Martin papers, 1948-19651
- John Engler Papers, 1968-20031
- John L. Kavanaugh papers, 1970-2011 (majority within 1990s-2000s)1
- John Percey Clock papers, 1918-20101
- John Richard Behee sound recordings, 1969-19741
- John Sundwall Papers, 1921-19441
- John Teachout phonograph record collection, 1950-1964, undated1
- John W. Aldridge papers, 1943-2007 (majority within 1950-2000)1
- John and Leni Sinclair papers, 1957-20031
- Joseph L. Sax papers, 1943-20131
- Joseph Vining papers, 1953-20121
- Josh Mack papers, 1957-2019 (majority within 1968-1999)1
- Junior Girls' Play (University of Michigan) publications, 1906-19601
- Karoub family papers, circa 1947-circa 20051
- Keeve Milton Siegel papers, 1953-19831