- Alexander Haight family collection, 1764/19762
- Alexander Haight family collection, 1764/19773
- C-SPAN records, 1809/2012, bulk 1978/20124
- C. Harrison Mann, Jr. Map Collection, 1579/19611
- C. Harrison Mann, Jr. map collection, 1579/19611
- C. Harrison Mann, Jr. papers, 1832/197956
- Carol R. Lubin papers, 1960/19812
- Clark E. Warburton papers, 1920/19796
- Commonwealth of Virginia documents signed by governors appointing justices of the peace and sheriffs for Loudoun County, 1809/18491
- Edward Vitale violin music collection, 1700/19001
- Edwin W. Lynch Vietnam War protest collection, 1965/19756
- George Mason University Student Government records, 1968/20191
- James M. Buchanan papers, 1800/20142
- John N. Paden papers, 1938/20102
- League of Women Voters of the Fairfax Area records, 1809/2012, bulk 1978/20121