| Harvey Kitzman Papers | Abstracts |
| David Y. Klein Papers | Abstracts |
| E. H. Kohlhagen Papers | Abstracts |
| Alex Kovacs Papers | Abstracts |
| Joseph J. Kowalski Papers | Abstracts |
| Dorothy Kraus Papers | Abstracts |
| Henry Kraus Papers | Abstracts |
| Maynard Krueger Papers | Abstracts |
| Frank LaBita Papers | Abstracts |
| W. Jett Lauck Papers | Abstracts |
| Richard T. Leonard Papers | Abstracts |
| Edward Levinson Papers | Abstracts |
| James Lindahl Papers | Abstracts |
| Howard Lipton Papers | Abstracts |
| Ed Liska Papers | Abstracts |
| John W. Livingston Papers | Abstracts |
| Percy Llewellyn Papers | Abstracts |
| Frank Lohr Papers | Abstracts |
| Robert Lopez Papers | Abstracts |
| George Lutzai Papers | Abstracts |
| George Lyons Papers | Abstracts |
| Nora Maczko Papers | Abstracts |
| Olga Madar Papers | Abstracts |
| Michael Manning Papers | Abstracts |
| Frank Marquart Papers | Abstracts |
| Blaine Marrin Papers | Abstracts |
| Fred Masters Papers | Abstracts |
| Joseph Mattson Papers | Abstracts |
| Emil Mazey Papers | Abstracts |
| Ernest Mazey Papers | Abstracts |
| Ashby C. McGraw Papers | Abstracts |
| Thomas McNett Papers | Abstracts |
| Stoyan Menton Papers | Abstracts |
| Metropolitan Detroit AFL-CIO "Labor News" Photographs | Abstracts |
| Lewis H. Michener Papers | Abstracts |
| Michigan Coalition for Human Rights Records | Abstracts |
| Ira A. Miller Papers | Abstracts |
| Robert J. Mills Papers | Abstracts |
| David Moberg Papers | Abstracts |
| Prince Moon Papers | Abstracts |
| Ernest J. Moran Papers | Abstracts |
| Ken Morris Papers | Abstracts |
| Wyndham Mortimer Papers | Abstracts |
| Bette Murphy Papers | Abstracts |
| Vincent J. Murray Papers | Abstracts |
| Tony Nicols Papers | Abstracts |
| Stanley and Margaret Collingwood Nowak Papers | Abstracts |
| Francis O'Rourke Diary | Abstracts |
| William Ogden Papers | Abstracts |
| William Oliver Papers | Abstracts |
