Former Owner
- R. H. Fenn1
- Rafael Floranes1
- Rafael Gomes1
- Raphael Nathan Nata Rabinowitz1
- Reuschenberg, Margreta von1
- Rev. Frederick Collins Wilson1
- Richard Ashurst Bowie1
- Rinaldo Ridolfini1
- Robert Branthwait1
- Robert Brodhead Honeyman1
- Robert Lehman1
- Robert Lenkiewicz1
- Robert Neville1
- Robert Samuel Turner1
- Robert Wheeler Willson1
- Robert de Mol1
- Roderick Terry1
- Rosamond B. Loring1
- Royal Monastery of Saint Mary of Guadalupe1
- Rudolphus Rasser Donatus1