Former Owner
- Robert Manning Strozier Library1
- Robert Neville1
- Robert Oppenheim1
- Robert Ranshaw1
- Robert S. Pirie1
- Robert Stayner Holford1
- Robert Villareal1
- Robert Wheeler Willson1
- Robert Wyer1
- Robert de Hangest5
- Robert de Mol1
- Robson & Kerslake1
- Roderick Terry1
- Rodrigo de Abejos1
- Roger Martin1
- Rolls1
- Rosamond B. Loring1
- Ross R. DeVean1
- Ross Winans2
- Rowland G. Hazard1