Former Owner
- Mary Augusta Strachey1
- Mary Shalom Karo1
- Mauni, Bālaṃbhaṭa1
- Mazliah Finzi1
- Menno Hertzberger1
- Michael Bernays1
- Michael Greenberg1
- Miriam Lutcher Stark1
- Miss Gostling1
- Mistrie, Sita Ram, Pandit1
- Mitchell Starrett Buck1
- Monastery at San Gregorio al Celio1
- Morell Thurston1
- Moritz Dessauer1
- Moritz Joseph Johann von Dietrichstein1
- Mortimer Frank1
- Morton Parker Eden1
- Moḍaka, Vināyaka1
- Mr. Hals1
- Muhammed Ali Khan Wallajah1