Former Owner
- Taschen von I. Kossel. R.1
- That Guy with the Books1
- Theodore Newton Vail1
- Theodore William John Wylie1
- Theodore Williams1
- Thomas Corser1
- Thomas Oliver Anderdon1
- Thomas Pearson1
- Thomas Richardson1
- Thomas Shadford Walker1
- Thomas Windus1
- Tomlinson, Robert1
- Turner Macan1
- Typographic Library and Museum1
- Van Dalem1
- Victor Mordechai Goldschmidt1
- W. F. Olis1
- W. H. Allen & Co.1
- Walter Wehle Naumburg1
- Wentworth Woodhouse1