Former Owner
- Samuel Dennis1
- Samuel P. Avery Jr.1
- Samuel Putnam Avery1
- Samuel Whitaker Pennypacker1
- Sandbergs Bokhandel1
- Sebastienne Boscher1
- Simon Jason Schwartz1
- Sir Godfrey Webster1
- Sir Henry St John-Mildmay, 4th Baronet1
- Sir John Peachey1
- Sir John Thorold, 10th Baronet1
- Sir William Henry Ingilby, 4th Bt.1
- Sir William Stirling-Maxwell, 9th Baronet1
- St. Mary's College1
- Stephen Butler Rare Books & Manuscripts1
- Susan Minns1
- T. Royer1
- T. Whitcombe Greene1
- That Guy with the Books1
- Theodore Newton Vail1