- Early Records of the Mount Vernon Ladies' Association, 1853/1951, bulk 1853/1875160
- Restoration Files for the Historic Structures Report, 1750/2005117
- Peter family papers, 1722/193246
- Lily Laughton Papers, 1850/189139
- Geo. Gregory Smart collection of Washington and Mount Vernon ephemera, 1793/201734
- Papers of the Mount Vernon Ladies' Association, 1858/201634
- Historical Photograph Collection, 1850/201028
- Historic newspapers collection, 1757/195727
- Papers of the Superintendent and Resident Director, 1850/199620
- Robert Waldsmith Collection of stereographs and cabinet cards, 1856/198118
- Financial Records of the Mount Vernon Ladies' Association, 1858/201514
- John Augustine Washington III and family papers, 1789/19948
- Morley Jeffers Williams Collection, 1602/19678
- Publications and Printed Material of the Mount Vernon Ladies' Association, 1854/20168
- Historic ephemera collection, 1796/19866