Former Owner
- Charles Towneley1
- Charles William Hamilton Sotheby1
- Charles-Henri de Clermont-Tonnerre1
- Chiswick Book Shop1
- Christian Brevoort Zabriskie1
- Christine Blondeau1
- Christopher Cheney1
- Chrétien-François II de Lamoignon1
- Church of St James, Sarsden1
- Clarence S. Bement1
- Claude Joseph Constant Despine1
- Comte André de Riaucourt1
- Cordwainer Smith1
- Cornelius John Hauck1
- Cortlandt F. Bishop1
- Count Alexis de Golowkin1
- Couvent des Minimes (Clermont-Tonnerre, France)1
- Cox Macro1
- Cristoferus Chrewczer1
- Curt H. Reisinger1