- Audio Visual Collection, 1928/20151
- Financial Records of the Mount Vernon Ladies' Association, 1858/20151
- Geo. Gregory Smart collection of Washington and Mount Vernon ephemera, 1793/20171
- Guest Books and Visitor Registers, 1850/20161
- Licensing Department Files, 1984/20141
- Measured Drawings and Blueprints of Mount Vernon, 1870/20161
- Mount Vernon and MVLA Ephemera, 1858/20221
- Oral Histories of the Mount Vernon Ladies' Association, 1957/20151
- Papers of Mary V. Thompson, Research Historian, 1980/20121
- Papers of the Mount Vernon Ladies' Association, 1858/20161
- Publications - History of Mount Vernon and George Washington, 1854/20121
- Publications and Printed Material of the Mount Vernon Ladies' Association, 1854/20161