Former Owner
- Prince Sadruddin Aga Khan1
- Quinton Edward Gurney1
- R. F. Pain1
- Rafael Gomes1
- Ramsau Monastery1
- Raoul Chandon de Briailles1
- Richard Ashurst Bowie1
- Richard Linenthal1
- Richard Priestley1
- Richarde H Ffrancis, fl. ca. 16th c.1
- Robert B. Honeyman1
- Robert Benson, fl. Ca, 18th c.1
- Robert Churchill1
- Robert Hoe III1
- Robert Ranshaw1
- Rudolphus Rasser Donatus1
- Saeed Nafisi1
- Sam Fogg Rare Books & Manuscripts1
- Samuel David Luzzatto1
- Samuel H. Putnam1