Former Owner
- Madeleine Cosman1
- Malachia Ormanian1
- Mario Maffei1
- Mark Lansburgh1
- Mary Augusta Strachey1
- Mayer Sulzberger1
- Monteles, Avraham de1
- Monteles, Yosef de1
- Morris Jastrow, Jr.1
- Muḥammad Nāfiʻ, active 18581
- Muṣṭafa Ṣidḳī1
- Norman Winestine1
- Norza, Leon1
- Paolo Giovio1
- Paul Grinke1
- Pierre Tassel1
- Pietro Civaleri1
- Rashīdī, Ibrāhīm ibn Yūsuf1
- Raymond Oliver1
- Richard Heber1