Former Owner
- Stephen Butler Rare Books & Manuscripts1
- Stevens Henry Newton5
- Stiftsbibliothek Kremsmünster1
- Susan B. Minns3
- Susan Coulter9
- Susan Minns1
- Swann Galleries1
- Sydney Cockerell62
- Sydney Edward Lucas3
- Sébastien de Rosmadec, marquis de Molac1
- T. Royer1
- T. Triphook1
- T. Whitcombe Greene1
- Tammaro De Marinis2
- Taschen von I. Kossel. R.1
- That Guy with the Books1
- Theodore Bruce Auctions1
- Theodore Williams1
- Thomas Appleby1
- Thomas Bateman1