Former Owner
- Prieuré Saint-Louis de Poissy1
- Prosper Blanchemain1
- R. J. Bunck1
- Rendell1
- René Antoine Thoué1
- Ricardo, Conde de Benahavis Heredia1
- Richard Bennett1
- Richard Firth Green1
- Robert Churchill1
- Robert H. Sayre1
- Robson & Kerslake1
- Ross R. DeVean1
- Ross Winans1
- Roy G. Fitzgerald1
- Royaumont Abbey1
- Rudolf Busch1
- Rudolph Frederick Kelker1
- Ruth E. Adomeit1
- S. Ereilter1
- Sabin1