Former Owner
- Richard Hooker1
- Robert B. Honeyman1
- Robert H. Sayre1
- Robert Hoe III6
- Rudolph Frederick Kelker2
- Ruth Cheney Streeter1
- S. S. Conant1
- Sabin1
- Sam Fogg Rare Books & Manuscripts1
- Samuel Whitaker Pennypacker1
- Samuel Wix1
- Simon Gratz1
- Sister Anna van Essen1
- Sister Lysebet van Karnehe1
- Sister Marghareta van den Spegher1
- Susan B. Minns4
- Sydney Cockerell1
- T. Royer1
- T. Whitcombe Greene1
- T.L. Hartung1