Former Owner
- Stanley Morison1
- Stiftsbibliothek Kremsmünster1
- Tammaro De Marinis1
- Taschen von I. Kossel. R.1
- That Guy with the Books1
- Theodor Cramer-Klett1
- Theodore Parker1
- Thomas Baker1
- Thomas Blayds1
- Thomas Cole1
- Thomas E. Marston1
- Thomas Edwards1
- Thomas F. Richardson1
- Thomas Gage1
- Thomas Gibson-Carmichael, 1st Baron Carmichael1
- Thomas Martin1
- Thomas Stonor, 3rd Baron Camoys1
- Thomas Thomson1
- Thomas Tresham II1
- Thomas Woodward1