- Audio Visual Collection, 1928/20155
- Financial Records of the Mount Vernon Ladies' Association, 1858/20154
- Geo. Gregory Smart collection of Washington and Mount Vernon ephemera, 1793/20173
- Guest Books and Visitor Registers, 1850/20162
- Historical Photograph Collection, 1850/20101
- Licensing Department Files, 1984/201412
- Measured Drawings and Blueprints of Mount Vernon, 1870/20163
- Mount Vernon and MVLA Ephemera, 1858/20221
- Oral Histories of the Mount Vernon Ladies' Association, 1957/20152
- Papers of Mary V. Thompson, Research Historian, 1980/201235
- Papers of the Mount Vernon Ladies' Association, 1858/201656
- Publications - History of Mount Vernon and George Washington, 1854/20124
- Publications and Printed Material of the Mount Vernon Ladies' Association, 1854/201611