Former Owner
- Benetto Spinelli1
- Bernard Quaritch Ltd8
- Bertram Ashburnham, 4th Earl of Ashburnham16
- Betty Freudenheim1
- Biblioteca Trivulziana1
- Brian Douglas Stilwell1
- Brick Row Book Shop1
- Bruce P. Ferrini3
- Byron Reed1
- C Traylen Bookshop1
- Certosa di Farneta, Province of Lucca2
- Charles Brodrick1
- Charles Ede1
- Charles Lenormand du Coudray2
- Charles Stephen Ascherson1
- Charles-Benoit de Campigny1
- Charlier de Namur1
- Chiswick Book Shop1
- Château d'Anet1
- Clement Griscom1