Former Owner
- Renzo Rizzi libri antichi1
- Ricardo Enrico de Wilde1
- Richard Bennett1
- Richard Heber7
- Richard Henry Wilde1
- Richard McKeon1
- Richard Priestley1
- Rinaldo Ridolfini1
- Robert B. Honeyman1
- Robert Brodhead Honeyman1
- Robert Garrett3
- Robert Hoe III8
- Robert Oppenheim1
- Robert S. Pirie1
- Robert Villareal1
- Roger Martin1
- Ross Winans1
- Rudolf Graupner1
- Rush Hawkins1
- Ruth E. Adomeit1