Former Owner
- Lydia Thompson Morris2
- Maggs Bros Ltd2
- Margaret Le Seigneur1
- Marguerite of Lorraine1
- Martin Breslauer1
- Menno Hertzberger1
- Mercantile Library Company1
- Messieurs Du Trieu2
- Monastero di Santo Spirito in Verona1
- Morot1
- Mrs. E.J. Hooper1
- Oliver Henry Perkins2
- Paul Gottschalk1
- Peter Arrell Brown Widener2
- Peter Arrell Brown Widener II2
- Petrus Jensenius1
- Petrus Leonardus1
- Petrus Martinotius1
- Petrus Ysermans1
- Pierre de La Vacherie1