- Effinger School Collection, 1909/20112
- Abraham Anson papers, 1939/20051
- Anne and Alan Morledge Collection, 1946/2005, bulk 1969/19881
- C-SPAN records, 1809/2012, bulk 1978/20121
- Channing M. Hall III Williamsburg, Virginia Papers, 1996/20041
- Charles A. Veatch papers, 1970/20041
- Dennis Pluchinsky collection on terrorism and counterterrorism, 1956/20161
- Ephemera Collection, 1800/20141
- George Mason University student publications, 1960/20241
- Martha Pennino papers, 1960/20051
- Matthew Whaley School Collection, 1850/2012, bulk 1880/19601
- Reston Black Focus records, 1960/20051
- Reston Museum collection, 1962/20061
- Robert E. Simon, Jr. papers, 1960/20061
- Will Molineux collection, 1952/20251