Former Owner
- Morot1
- Morris H. Morgan5
- Morris Harold Saffron1
- Morris Jastrow, Jr.1
- Mortimer Loeb Schiff1
- Morton Davis Mitchell1
- Morton Parker Eden1
- Mount Zion Abbey1
- Moḍaka, Vināyaka1
- Mr. Hals1
- Mrs. E.J. Hooper1
- Mrs. F. W. Bartlett1
- Mrs. Turnbull1
- Muhammed Ali Khan Wallajah1
- Muhsinzâde Ömer Aǧa1
- Mullā ʻAbbās Zīvarī1
- Muriel Agnes Fry1
- Murray Anthony Potter1
- Musa Kâzım Efendi1
- Museo Cavaleri1