Former Owner
- Michele Cavaleri2
- Oliver Henry Perkins2
- Oric Bates2
- Paul Gottschalk2
- Paul Sabatier2
- Percy Mordaunt Barnard2
- Peter Arrell Brown Widener II2
- Pietro Antonio Crevenna2
- Pius VI2
- Preston A. Perry2
- R. Stora and Company2
- Richard Bennett2
- Richard Gough2
- Rosamond B. Loring2
- Rushton Mather Dorman2
- Ruth E. Adomeit2
- Samuel Putnam Avery2
- San Sisto, Piacenza2
- Sandbergs Bokhandel2
- Seitenstetten Abbey2