- Jefferson H. Clark Collection, 1914/20001
- Maakestad Collection, 1972/19841
- Martha Pennino papers, 1960/20051
- Martin Wohl papers, 1919/20001
- Matthew Whaley School Collection, 1850/2012, bulk 1880/19601
- Northern Virginia history collection, 1911/19871
- Peter McCandless papers, 1978/19921
- Prince William County historic newspapers collection, 1851/19921
- Reston Black Focus records, 1960/20051
- Reston Museum collection, 1962/20061
- Reston Players collection, 1966/19831
- Robert E. Simon, Jr. papers, 1960/20061
- Robert Stewart Papers, 1954/1988, bulk 1960/19802
- Rodney B. Taylor Papers, 1957/2003, bulk 1939/20001
- Thelma Pedersen Collection, 1899/19881