Former Owner
- John D. Stanitz1
- John Frederick Lewis4
- John Patteson1
- John Thomas Beer1
- Josiah H. Benton1
- Judith Lady Montefiore College1
- Kloster Rebdorf1
- Kāle, Gālambhaṭṭa1
- Kāle, Janārdana1
- Lathrop Colgate Harper2
- Lawrence J. Schoenberg13
- London School of Jewish Studies1
- Louis-Jean-Nicolas Monmerqué1
- Mahārāja Aditya Bahadur Dinha8
- Malachia Ormanian1
- Marcus Jastrow13
- Marāṭha, Raṅganātha1
- Mayer Sulzberger4
- Morris Jastrow, Jr.13
- Morton Parker Eden1