Former Owner
- Otto Orren Fisher1
- Paolo Gallo1
- Parroco di Taviano, Luigi Bruno, active 20th century1
- Paul Gottschalk1
- Paul Sabatier1
- Peter Le Neve1
- Petrus Hofstede1
- Philip C. Duschnes Rare Books & First Editions1
- Pierre Pithou1
- Prediger (Schwäbisch Gmünd)1
- Richard Heber1
- Robert Hoe III1
- Rudolf Busch1
- Rush Hawkins1
- Saint-Amand Abbey1
- Saluti, Tomasso, active 20th century1
- Samuel H. Putnam1
- San Barnaba Church1
- That Guy with the Books1
- Theodore Parker1