Former Owner
- Bern Dibner1
- Bernard M. Rosenthal1
- Bernard Quaritch1
- Bernard Quaritch Ltd1
- Bertram Ashburnham, 4th Earl of Ashburnham1
- Bet din tsedeḳ London ṿeha-medinah1
- Bhauruji, Pandit1
- Brahmānaṃdatīrtha1
- Budapest University of Jewish Studies1
- Burndy Library1
- Bāpaṭa Kṛṣṇabhaṭa1
- Caesareum Societatis Jesu Collegium Viennense1
- Charles Butler1
- Charles D. Humberd1
- Charles Joseph Harford1
- Charles Louis Adelaïde Henri Matheron Curnieu1
- Charles Marriette1
- Charles Sessler1
- Charles Seymour, 6th Duke of Somerset1
- Charles Singer1