- Abraham Anson papers, 1939/20051
- Alexander Haight family collection, 1764/19761
- American Public Transportation Association records, 1898/19991
- Arthur Arundel papers, 1964/19901
- C-SPAN records, 1809/2012, bulk 1978/20121
- Charles A. Veatch papers, 1970/20041
- Clarence J. Robinson papers, 1897/19781
- College of Visual and Performing Arts records, 1930/20151
- David Pass papers, 1934/20011
- Egon Verheyen papers, 1959/20081
- Francis C. Steinbauer Reston development and planning collection, 1962/19901
- George Mason University Center for the Study of Constitutional Rights records, 1955/19921
- Jerome Epstein papers, 1943/19831
- John N. Paden papers, 1938/20101
- Kjell Sandved nature photograph collection, 1960/20081