Former Owner
- Mayer Sulzberger1
- Maḥmūd bin Nāṣir1
- Melk Abbey2
- Meschatin La Faye family1
- Michael Greenberg1
- Mikhail Golitsyn1
- Milton Fischmann8
- Mirmellus Arnandi1
- Monasterio de El Paular1
- Monastery of Saint Peter (Erfurt, Germany)1
- Moor of Ireton1
- Mount Zion Abbey1
- Mrs. F. W. Bartlett1
- Muḥammad Nāṣir al-Dawlah1
- Muḥammad al-Raʼīs1
- Muḥammad ʻAbd al-Ḥayy ibn ʻAbd al-Kabīr al-Kinānī al-Ḥasanī1
- Muḥammad Ṣābir1
- Muṣṭafá Shāh ʻAlāʼī1
- Nathaniel Dunbar1
- New York Academy of Medicine4