- M. Caldwell Butler Papers, 1945/20061
- M. L. Foley Collection,, 1958/19642
- M. Rosaria Piomelli Architectural Collection, 1960/19951
- M. Rupert Cutler Papers, 1930/2021, bulk 1962/20213
- M. Thomas Inge papers, 1879/20011
- M.H. Ross, Collector, Papers, 1930/19741
- M.H. Ross, Collector, Papers, 1931/19572
- MCV Foundation/Monumental Church records, 1957/196511
- Mabel DeVries Tanner, Playwright, Correspondence and Play Scripts, 1906/19651
- Mabel Hoggard, Educator, Papers, 1924/1989, bulk 1932/19891
- Maben Jones Papers6
- Maddex Family Papers, 1937/20001
- Madison E. Marye Papers, 1932/20072
- Maggie Anderson, Poet, Papers, 1958/2017, bulk 1980/20124
- Magruder School Parent Teacher Association Scrapbook, 1949/19602