- Beebe collection of Washington family papers, 1818/1861, bulk 1840/18501
- Bushrod Washington family papers, 1662/18359
- Chapin collection of Washington & Custis family documents, 1758/18292
- Elizabeth Bordley Gibson collection, 1794/185111
- Esther Maria Lewis Chapin collection of Washington family documents, 1743/18528
- Geo. Gregory Smart collection of Washington and Mount Vernon ephemera, 1793/20175
- Harrison H. Dodge Papers, 1816/19363
- Historic ephemera collection, 1796/19864
- Historic manuscript collection, 1601/193318
- Historic map collection, 1675/19711
- Historic newspapers collection, 1757/195721
- Historical Photograph Collection, 1850/20101
- John Augustine Washington III and family papers, 1789/19945
- Lawrence Lewis family papers, 1785/18588
- Lawrence Washington collection of Washington family papers, 1787/19321