- Lily Laughton Papers, 1850/189117
- Maps of Mount Vernon and the surrounding areas, 1857/19921
- Martha Washington collection, 1761/18021
- Measured Drawings and Blueprints of Mount Vernon, 1870/20161
- Morley Jeffers Williams Collection, 1602/19678
- Mount Vernon and MVLA Ephemera, 1858/20221
- Papers of Christine Meadows, Curator, 1960/19971
- Papers of the Mount Vernon Ladies' Association, 1858/201632
- Papers of the Superintendent and Resident Director, 1850/199622
- Peter family papers, 1722/193247
- Publications - History of Mount Vernon and George Washington, 1854/20125
- Publications and Printed Material of the Mount Vernon Ladies' Association, 1854/20168
- Restoration Files for the Historic Structures Report, 1750/2005117
- Robert Waldsmith Collection of stereographs and cabinet cards, 1856/198138
- Taylor collection of Lewis family papers, 1700/19501