- M. Rupert Cutler Papers, 1930/2021, bulk 1962/20213
- M. Thomas Inge papers, 1879/20012
- M.H. Ross, Collector, Papers, 1930/19741
- M.H. Ross, Collector, Papers, 1931/19572
- M.H. Ross, Collector, Papers, 1937/19451
- MCV Foundation/Monumental Church records, 1957/19656
- Mabel DeVries Tanner, Playwright, Correspondence and Play Scripts, 1906/19651
- Mabel Hoggard, Educator, Papers, 1924/1989, bulk 1932/19891
- Maben Jones Papers31
- Maddex Family Papers, 1937/20001
- Mademoiselle Zare Papers, 1930s-1950s, 1930/19501
- Madison E. Marye Papers, 1932/20072
- Madison Friendship Lodge Grand United Order of Odd Fellows collection, 1880/19374
- Mae Alvan Belt Diaries, 1933/19432
- Malcolm MacPherson Brownlee Civil War diary and transcription, 1862/20201