- Audio Visual Collection, 1928/20154
- Early Records of the Mount Vernon Ladies' Association, 1853/1951, bulk 1853/18753
- Financial Records of the Mount Vernon Ladies' Association, 1858/201554
- Geo. Gregory Smart collection of Washington and Mount Vernon ephemera, 1793/201719
- George Washington Memorial Parkway History Collection, 1900/20014
- Guest Books and Visitor Registers, 1850/20162
- Historic ephemera collection, 1796/198610
- Historic manuscript collection, 1601/19331
- Historic map collection, 1675/19711
- Historic newspapers collection, 1757/19573
- Historical Photograph Collection, 1850/201021
- John Augustine Washington III and Mount Vernon Ladies' Association (MVLA) collection, 1834/19571
- John Augustine Washington III and family papers, 1789/19946
- Land Records of the MVLA, 1858/20065
- Maps of Mount Vernon and the surrounding areas, 1857/19923