- Northern Neck Collection, 1672/19361
- Office of the President. James Blair Records, 1695/17473
- Ollen Lawrence Burnette, Jr. papers, 1815/20141
- Papers of the Low Moor Iron Company
1873-19271
- Paul G. Caplan Papers, 1890/20041
- Paul Stevens map collection, 1541/17781
- Peter family papers, 1722/193231
- Powell Family papers, 1775/19291
- Quinby, Teackle, and Upshur families of Somerset County, Maryland, and Accomack and Northampton Counties, Virginia Papers, 1713/19771
- Randolph H. Lytton historical Virginia collection5
- Reverend Isaac Morris Family History, 1700/19281
- Richard A. Rutyna Papers, 1763/20111
- Richard Billups Papers, 1705/1857, bulk 1774/18222
- Richard G. Joynt Collection of British Manuscripts, 1593/20151
- Richard J. DeMartino papers, 1910/19651