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- Prince George County (Va.)--Maps, Manuscript. (3)
- Prince George County (Va.)--Maps. (5)
- Prince George County (Va.).--History--Civil War, 1861-1865--Maps. (6)
- Prince William County (Va.)--History--Civil War, 1861-1865--Maps. (11)
- Prince William County (Va.)--Maps, Manuscript. (3)
- Prince William County (Va.)--Maps. (6)
- Prince William County--Maps, Manuscript. (2)
- Prisons--Georgia--Andersonville. (1)
- Proofs (Printing)--Maps. (1)
- Puducah Region (Ky.)--History--Civil War, 1861-1865--Maps. (2)
- Puget Sound (Wash.)--Maps. (1)
- Pulaski County (Va.)--History--Civil War, 1861-1865--Maps. (1)