Former Owner
- Luis Ordoñez1
- Lutheran Theological Seminary at Philadelphia1
- Maggs Bros Ltd1
- Manoel Pereira da Sylva1
- Manuel Fernández del Castillo1
- Manuel John Johnson1
- Marcantonio Contarini1
- Markus Fugger1
- Mary Schell Collins1
- Mary Talbot, Countess of Shrewsbury1
- Michiel family1
- Morris Jastrow, Jr.1
- Mortimer Loeb Schiff1
- Muḥammad Bāqir Shīrāzī1
- Muḥammad Ḥusayn ibn Jaʻfar Qulī1
- Nicolas Moreau1
- Oliver Henry Perkins1
- Oliver R. Barrett1
- Otto Jahn1
- Otto Orren Fisher1