- Historical Photograph Collection, 1850/2010189
- Restoration Files for the Historic Structures Report, 1750/2005123
- Robert Waldsmith Collection of stereographs and cabinet cards, 1856/198153
- Peter family papers, 1722/193242
- Early Records of the Mount Vernon Ladies' Association, 1853/1951, bulk 1853/187538
- Papers of the Mount Vernon Ladies' Association, 1858/201636
- Papers of the Superintendent and Resident Director, 1850/199632
- Geo. Gregory Smart collection of Washington and Mount Vernon ephemera, 1793/201724
- Superintendent's Letter Books, Diaries, and Monthly Reports - collection of bound volumes, 1885/196719
- Financial Records of the Mount Vernon Ladies' Association, 1858/201517
- Lily Laughton Papers, 1850/189110
- Historic newspapers collection, 1757/19579
- Morley Jeffers Williams Collection, 1602/19678
- Publications and Printed Material of the Mount Vernon Ladies' Association, 1854/20168
- Harrison H. Dodge Papers, 1816/19367