Former Owner
- Pontigny Abbey1
- Prieuré Saint-Louis de Poissy1
- Prosper Blanchemain1
- René Antoine Thoué1
- Ricardo, Conde de Benahavis Heredia1
- Richard Bennett1
- Robert Churchill1
- Robert H. Sayre1
- Robson & Kerslake1
- Ross Winans1
- Roy G. Fitzgerald1
- Royaumont Abbey1
- Rudolf Busch1
- Rudolph Frederick Kelker1
- Rushton Mather Dorman1
- Ruth E. Adomeit1
- S. Ereilter1
- Sabin1
- Saint-Amand Abbey1
- Samuel Putnam Avery1