- Arena Stage records16,666
- C-SPAN records14,456
- Planned Community Archives collection10,705
- Federal Theatre Project photograph collection8,288
- James M. Buchanan papers7,926
- George Mason University Dissertation and Thesis collection6,599
- George Mason University Libraries records6,125
- Clark E. Warburton papers6,086
- George Mason University photograph collection5,559
- John N. Warfield papers4,884
- Francis J. McNamara papers4,687
- George Mason University Office of the President records4,646
- Clive L. DuVal papers4,170
- Reston Reflections oral history collection4,170
- George Mason University publications4,104