- Lee Nicholson Papers, 1827/19384
- Lynch Family History, 1600/19401
- Maben Jones Papers1
- Manuscripts - People and Family Names, 1621/1949, bulk 18001
- Manuscripts Artifact Collection, 1800/20101
- Map Collection, 1629/19911
- Margaret Forbes Brand, Compiler, Genealogies, 1500/19651
- Mason C. Andrews Papers, 1777/2010, bulk 1950/19901
- Mining Industry, 1000/20001
- Morley Jeffers Williams Collection, 1602/19673
- Morton Genealogy Collection, 1830/19784
- Museums at Washington and Lee records, 1649/20161
- Naval Account Book, 1660/17112
- Northern Neck Collection, 1672/19361
- Ollen Lawrence Burnette, Jr. papers, 1815/20141