Former Owner
- Marvin-L. Colker1
- Mary Bloch1
- Mary Schell Collins1
- Mary Talbot, Countess of Shrewsbury1
- Matteo Luigi Canonici2
- Michel de Léon1
- Milton Fischmann21
- Mirmellus Arnandi1
- Moissac Abbey1
- Mortimer Loeb Schiff1
- Morton Davis Mitchell1
- Muriel Agnes Fry1
- Nathaniel Sherman Bouton1
- Newman F. McGirr1
- Nicholas B. Scheetz1
- Norman H. Strouse3
- Orlandus de Fatiis1
- Otto Ege1
- P. Pigeot1
- Paolo Vimercati Sozzi1