Former Owner
- Peter Arrell Brown Widener2
- Peter Arrell Brown Widener II2
- Peter Christos1
- Peter Eaton2
- Peter Le Neve3
- Peter Ludwig3
- Petrus Giraud1
- Petrus Hofman Peerlkamp1
- Petrus Hofstede1
- Petrus Jensenius1
- Petrus Joseph Puccius1
- Petrus Leonardus1
- Petrus Martinotius1
- Petrus Molitor1
- Petrus Ysermans1
- Philadelphia Museum of Art1
- Philadelphia Rare Books & Manuscripts Company1
- Philip Augustus Hanrott2
- Philip C. Duschnes3
- Philip C. Duschnes Rare Books & First Editions1