Former Owner
- Arthur M. Ellis1
- Arthur Thomas Bannister1
- Augustus Pugin1
- Baldassarre Boncompagni1
- Baptist Union Theological Seminary1
- Bartholus Blancellus1
- Beatrice de Fouar1
- Beauvais Cathedral1
- Benetto Spinelli1
- Bernard M. Rosenthal1
- Bernard Serrigny1
- Bernardo Bembo1
- Betty Freudenheim1
- Biblioteca Trivulziana1
- Bibliotheca Philosophica Hermetica1
- Bill Jackson1
- Brayton C. Ives1
- Brian Douglas Stilwell1
- Brick Row Book Shop1
- Byron Reed1