Former Owner
- Robert Oppenheim1
- Robert S. Pirie1
- Robert Villareal1
- Roger Martin1
- Ross Winans1
- Rudolf Graupner1
- Rush Hawkins1
- Ruth E. Adomeit1
- Ruth Fowler Jarvis1
- Saint Joseph's Seminary1
- Saluti, Tomasso, active 20th century1
- Sam Fogg Rare Books & Manuscripts1
- Samuel Allan1
- Samuel David Luzzatto1
- Samuel P. Avery Jr.1
- Samuel Petit1
- Samuel Putnam Avery1
- Samuel Whitaker Pennypacker1
- San Barnaba Church1
- San Cristoforo alla Certosa (Church : Ferrara, Italy)1