Former Owner
- Theodore Williams1
- Thomas Bateman3
- Thomas Corser1
- Thomas F. Richardson7
- Thomas Gage1
- Thomas Johnes2
- Thomas Oliver Anderdon1
- Thomas Pearson1
- Thomas Phillipps18
- Thomas Richardson1
- Thomas Shadford Walker1
- Thomas Windus1
- Thomas de Grey, 2nd Earl de Grey2
- Tomlinson, Robert1
- Turner Macan1
- Typographic Library and Museum2
- Van Dalem1
- Victor Mordechai Goldschmidt1
- Vittorio Forti1
- W. F. Olis1