Former Owner
- Richard Heber11
- Richard Priestley1
- Riederer, Georg Wilhelm1
- Robert Branthwait1
- Robert Charles Winthrop1
- Robert Forrer1
- Robert Garrett5
- Robert Hoe III21
- Robert Lehman3
- Robert Wheeler Willson1
- Rolls1
- Rosamond B. Loring1
- Ross Winans1
- Rowland G. Hazard1
- Rudolf Busch1
- Saluti, Tomasso, active 20th century1
- Samuel Allen4
- Samuel Butler1
- Samuel Petit1
- Samuel Putnam Avery1