Former Owner
- Robert Branthwait1
- Robert Brodhead Honeyman1
- Robert Churchill1
- Robert Dallas1
- Robert Dechert1
- Robert Devereux, 2nd Earl of Essex1
- Robert Dudley, 1st Earl of Leicester1
- Robert Lehman1
- Robert Mignan1
- 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
- Sabina Sopheija Behren1
- Samuel Allan1
- Samuel Butler1