Former Owner
- John Henry Ellis11
- John Hinsdale Scheide9
- John McRay1
- John Morley1
- John Savile1
- John Selden1
- Joseph L. Lilly1
- Karl Wilhelm Hiersemann1
- Laurence William Hodson1
- Leo Olschki4
- Leonard Grey, 1st Viscount Grane1
- Librairie Damascène Morgand1
- Madyan Qusuni2
- Marienstiftsgymnasium1
- Mary Stanley, Countess of Derby1
- Matteo Luigi Canonici1
- Matthew Hale1
- Maḥmūd al-Ustādār, d. 1396 or 71
- Muḥammad Mahdī ibn Murtaḍá ibn Muḥammad Baḥr al-ʻUlūm1
- Muṣṭafá Ṣidqī1