Former Owner
- Richard Halter1
- Richard Mery of Hatfield1
- Richard Nykke1
- Richard Rich1
- Riddagshausen Abbey1
- Robert Brodhead Honeyman1
- Robert Davies1
- Robert Fyncham1
- Robert H. Sayre1
- Robert Rossiter Hutton1
- Ross Winans1
- Rudolph Frederick Kelker1
- Rugby School1
- Rushton Mather Dorman1
- Ruth Cheney Streeter1
- Sabin1
- Samuel Claggett Chew1
- Samuel Dennis1
- Schenck'sche Fide-Kommiss-Bibliothek1
- Scroop Egerton, 1st Duke of Bridgewater1