Former Owner
- Mark Lansburgh1
- Martin Picker1
- Mary Schell Collins1
- Mary Talbot, Countess of Shrewsbury1
- Mary W. T. Dickinson1
- Matthaeus Lupin1
- Melchior Daniel Neubronner1
- Merlemont family1
- Michiel family1
- Morris Jastrow, Jr.1
- Mortimer Loeb Schiff1
- Museo Cavaleri1
- Nancy McGrath1
- Nettie Goldsmith Naumburg1
- New York Academy of Medicine1
- Notre-Dame monastery (Ambert, France)1
- Omaha Public Library1
- Otto Orren Fisher1
- P. Desq1
- Paolo Giovio1