- Loraine Breed Coburn commonplace book, 1871/18951
- Martin Cohen theater collection, 1816/20171
- Northern Virginia Civil War images collection, 1853/19142
- Northern Virginia oral history project collection, 1958/19961
- Performing arts manuscripts collection, 1475/19843
- Prince William County Historic Newspapers Collection, 1851/19922
- Prince William County historic newspapers collection, 1851/19922
- Randolph H. Lytton Historical Virginia collection, 1670/200411
- Randolph H. Lytton historical Virginia collection10
- Robert Truax Washington, D.C. transportation collection, 1880/19853
- Robert and Wilva Breen papers, 1831/20001
- Roy Rosenzweig papers, 1934/200716
- Saint Andrew's Society collection, 1861/19956
- Sam di Bonaventura papers, 1900/19984
- Southwestern United States photograph collection, 189378