- Alexander Haight family collection, 1764/19761
- Elizabeth Campbell papers, 1964/19781
- George Mason University Office of University Relations newsclippings and press releases records, 1953/20021
- George Mason University Office of the President records, 1949/20131
- Henry H. Douglas papers, 1945/1992, bulk 1960/19731
- Indenture for a miller apprenticeship for Hugh Ogden in Loudoun County, Virginia1
- Letter from Corporal Francis Ronien of the 2nd Rhode Island Infantry to his brother Henry1
- Letter from Joseph Janney of Leesburg, Virginia1
- Letters from John Caygill to Josias Clapham regarding cargo shipments, 1751/17541
- Marcia E. McDevitt papers1
- Mason family manuscript account book, 1792/18201
- Northern Virginia Civil War images collection, 1853/19141
- Northern Virginia history collection, 1911/19871
- Northern Virginia oral history project collection, 1958/19961
- Northern Virginia planning collection, 1954/19761