Former Owner
- Paul Riant1
- Peter Arrell Brown Widener II1
- Philip C. Duschnes1
- Philip Sills1
- Phillip J. Pirages Fine Books & Manuscripts3
- Prince Augustus Frederick, Duke of Sussex2
- RR Donnelley1
- Rev. T. Barnes1
- Richard Griffith1
- Richard Hooker1
- Richard Legh1
- Richard Maria Domville1
- Richard Mery of Hatfield1
- Robert Hoe III4
- Rudolph Feilding, 8th Earl of Denbigh1
- S. S. Conant1
- Samuel Addington1
- Samuel Putnam Avery1
- Samuel Wix1
- San Giorgio Monastery1