- American Theatre Association records627
- Arena Stage records, 1949/2010538
- Francis J. McNamara papers, 1928/1997467
- James M. Buchanan papers, 1800/2014465
- C-SPAN records, 1809/2012, bulk 1978/2012340
- Stanford E. Parris papers316
- George Mason University Libraries records283
- George Mason University photograph collection202
- League of Women Voters of the Fairfax Area records, 1809/2012, bulk 1978/2012175
- Planned Community Archives collection164
- Living Stage records, 1965/2001152
- Joel Garreau papers132
- James H. Laue papers131
- John N. Warfield papers, 1931/2009127
- George Mason University Center for the Study of Constitutional Rights records, 1955/1992114