- Alexander Haight family collection, 1764/19761
- Alexander Haight family collection, 1764/19771
- C-SPAN records, 1809/2012, bulk 1978/20122
- C. Harrison Mann, Jr. Map Collection, 1579/19611
- C. Harrison Mann, Jr. map collection, 1579/19611
- Commonwealth of Virginia documents signed by governors appointing justices of the peace and sheriffs for Loudoun County, 1809/18491
- Edward Vitale violin music collection, 1700/19001
- James M. Buchanan papers, 1800/20141
- League of Women Voters of the Fairfax Area records, 1809/2012, bulk 1978/20121
- Martin Cohen theater collection, 1816/20171
- Michael La Vean French documents collection, 1751/18513
- Performing arts manuscripts collection, 1475/19841
- Randolph H. Lytton Historical Virginia collection, 1670/20041
- Robert and Wilva Breen papers, 1831/20001