Former Owner
- Matteo Luigi Canonici1
- Medingen Abbey1
- Morris H. Morgan1
- Paul Gottschalk1
- Petrus Jensenius1
- Petrus Ysermans1
- Raphael de Mediolano1
- René Henry1
- Robert B. Honeyman1
- Robert H. Sayre1
- Robert Hoe III1
- Rudolph Frederick Kelker1
- Ruth Cheney Streeter1
- Sabin1
- Sam Fogg Rare Books & Manuscripts1
- Sister Anna van Essen1
- Sister Marghareta van den Spegher1
- T. Royer1
- T. Whitcombe Greene1
- Theodore Williams1