- Paeonian Springs Council Records
1757-201032
- Paeonian Springs Research Collection
19762
- Patrick Acheson Collection
1920 - 195219
- Pioneer America Society Photograph Collection
1968-199440
- Plain, Persevering People of Purcellville, Virginia8
- Planning, Zoning & Development Department Visual Records of Historic Sites
1990 - 200499
- Planters' Club Records
1915-201376
- Poindexter Family Record
1904-1974, n.d.59
- Poll Book, Guilford Precinct, Broad Run Magisterial District of Loudoun County, VA
18772
- Portraits of Yardley and Hannah Taylor
n.d.5
- Potts Collection of Quaker Material
1878, n.d.5
- Preliminary Research of Free Blacks in Loudoun County, Virginia 1850-1860: Identity, Settlement Patterns and Cultural Landscape
1850-1866, 20047
- Preservation Society of Loudoun County Cemetery Committee Records
1936-199064
- Preservation Society of Loudoun County Collection
1973-200614
- Purcellville Library and Bookmobile
1887-19915