Former Owner
- Simon Gratz1
- Sir Alexander Campbell1
- 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
- Sister Lysebet van Karnehe1
- Sokol Books Ltd.1
- Staatliche Museen zu Berlin1
- Stella Kramrish1
- Stella, Giovanni Pietro, 16th century1
- Stephen Butler Rare Books & Manuscripts1
- Susan Minns1
- T. Royer1
- T. Whitcombe Greene1
- T.L. Hartung1
- Tammaro De Marinis1
- Taschen von I. Kossel. R.1
- That Guy with the Books1