Former Owner
- Khammāsh, Aḥmad1
- Khouri, Elias Alexander1
- Lawrence J. Schoenberg4
- Louis Lamm1
- Ludovic Damas Froissart1
- Luther Albertus Brewer1
- M. Louise Stowell1
- Manṣūr, Abū al-Faz̤l ibn Ghiyāth al-Dīn1
- Marcus Jastrow3
- Mark Sittich von Hohenems Altemps1
- Mayer Sulzberger8
- Milton Fischmann1
- Mitchell Starrett Buck1
- Monteles, Avraham de1
- Monteles, Yosef de1
- Morris Jastrow, Jr.4
- Muhammed Ali Khan Wallajah1
- Mushtaq Ali Khan I of Rampur1
- Muḥammad Ghazlāwī1
- Muḥammad Jaʻfar1