Former Owner
- R. H. Fenn1
- RR Donnelley1
- Rabbinical Seminary Vienna1
- Ramón de Mesonero Romanos1
- Raoul Chandon de Briailles1
- Renzo Rizzi libri antichi1
- Rev. J. Duncalf1
- Richard Ashurst Bowie1
- Richard Bennett1
- Richard Blount1
- Richard Gough1
- Richard Graves1
- Richard Halter1
- Richard Rich1
- Rinaldo Ridolfini1
- Robert Branthwait1
- Robert Charles Winthrop1
- Robert Forrer1
- Robert Fyncham1
- Robert Lyle1