Former Owner
- Bill Jackson1
- Boies Penrose1
- Boies Penrose II1
- Brayton C. Ives1
- Breslauer and Meyer1
- Bristol Baptist College1
- Bruce P. Ferrini1
- Brudenell family1
- Burg Kreuzenstein1
- Byron Reed1
- C.B1
- Caesareum Societatis Jesu Collegium Viennense1
- Carl Hermann Grabauer1
- Carleton Rubira Richmond1
- Carlo Archinto, 2nd Marquess of Parona, 3rd Count of Trainate1
- Carlo Bonaparte1
- Catharine Wisser1
- Catherine Barton1
- Caxton Club1
- Cecil Deedes1