Former Owner
- Pietro Antonio Crevenna1
- Prieuré Saint-Louis de Poissy1
- René Antoine Thoué1
- Robert Brodhead Honeyman2
- Robert H. Sayre1
- Robert Hoe III3
- Royaumont Abbey1
- Rudolph Frederick Kelker1
- Sabin1
- Samuel Claggett Chew2
- Sebastienne Boscher1
- Simon Gratz1
- Sir John Peachey1
- Susan B. Minns2
- Susan Minns1
- T. Whitcombe Greene1
- T.W. Greene1
- Theodore Newton Vail1
- Theodore Williams1
- Thomas F. Richardson5