Former Owner
- Josephine Widener Wichfield2
- Lathrop Colgate Harper2
- Matteo Luigi Canonici2
- Michele Cavaleri2
- Nicolas Antoine Labbey de Billy2
- Otto Ege2
- Paul Riant2
- Peter Arrell Brown Widener2
- Peter Arrell Brown Widener II2
- Phillip J. Pirages Fine Books & Manuscripts2
- Robert Brodhead Honeyman2
- Ross Winans2
- San Sisto, Piacenza2
- Sandbergs Bokhandel2
- Thomas Bateman2
- Thomas de Grey, 2nd Earl de Grey2
- W. J. Gilbert2
- Walter Paul Havens2
- Ward Murphey Canaday2
- Warren C. Crane2