- Early Records of the Mount Vernon Ladies' Association, 1853/1951, bulk 1853/187537
- Esther Maria Lewis Chapin collection of Washington family documents, 1743/18521
- Financial Records of the Mount Vernon Ladies' Association, 1858/201518
- Geo. Gregory Smart collection of Washington and Mount Vernon ephemera, 1793/201730
- Guest Books and Visitor Registers, 1850/20164
- Harrison H. Dodge Papers, 1816/19367
- Historic ephemera collection, 1796/19864
- Historic manuscript collection, 1601/19337
- Historic map collection, 1675/19711
- Historic newspapers collection, 1757/195715
- Historical Photograph Collection, 1850/2010208
- John Augustine Washington III and Mount Vernon Ladies' Association (MVLA) collection, 1834/19571
- John Augustine Washington III and family papers, 1789/19947
- Land Records of the MVLA, 1858/20062
- Lawrence Washington collection of Washington family papers, 1787/19321