- George Mason University Oral History Program collection, 1978/20241
- George Taylor Klipstein manuscript medical account books, 1881/19181
- James A. Wilding Metropolitan Washington Airports Authority notebooks, 1974/20031
- Jean Marburg League of Women Voters collection, 1970/19881
- League of Women Voters of the Fairfax Area records, 1809/2012, bulk 1978/20121
- Leesburg, Virginia "Rates of Toll" list, 18331
- Letter from Corporal Francis Ronien of the 2nd Rhode Island Infantry to his brother Henry1
- Letter from Joseph Janney of Leesburg, Virginia1
- Margaret W. Fisher papers, 1972/19961
- Mary Walton Livingston papers, 20181
- Mason family manuscript account book, 1792/18201
- Noman M. Cole, Jr. papers1
- Northern Virginia Civil War images collection, 1853/19141
- Northern Virginia Music Center at Reston collection, 1967/19791
- Northern Virginia farmer's diary1