Former Owner
- Martinus Nijhoff1
- Messieurs Du Trieu2
- Milton Fischmann3
- Miriam Lutcher Stark2
- Monsieur de Bel Air1
- Morot1
- N. Pauli1
- Nicholas B. Scheetz1
- Oliver Henry Perkins2
- Otto Ege1
- Paul Gottschalk1
- Peter Arrell Brown Widener2
- Peter Arrell Brown Widener II1
- Peter Le Neve1
- Petrus Hofstede1
- Petrus Jensenius1
- Petrus Ysermans1
- Philadelphia Rare Books & Manuscripts Company1
- Philip Hofer1
- Philip Hurd1