Former Owner
- Robert Hoe III70
- Robert Lehman5
- Robert Lyle1
- Robert Mignan1
- Robert Neville1
- Robert Ranshaw1
- Robert S. Pirie1
- Robert Samuel Turner1
- Robert Stayner Holford1
- Robert Wyer1
- Robert de Hangest4
- Robert de Mol1
- Robson & Kerslake1
- Roderick Terry1
- Rolls1
- Rosamond B. Loring1
- Ross Winans2
- Roy G. Fitzgerald1
- Royaumont Abbey1
- Rudolf Busch2