Former Owner
- Stella, Giovanni Pietro, 16th century1
- Stephen Butler Rare Books & Manuscripts1
- Susan Minns1
- T. Royer1
- T. Whitcombe Greene1
- T.L. Hartung1
- Tammaro De Marinis1
- That Guy with the Books1
- Theodore Newton Vail1
- Theodore Williams1
- Thomas Corser1
- Thomas Gage1
- Thomas Oliver Anderdon1
- Thomas Pearson1
- Thomas Richardson1
- Thomas Shadford Walker1
- Thomas Windus1
- Thomas de Grey, 2nd Earl de Grey1
- Tomlinson, Robert1
- Turner Macan1