Former Owner
- Thomas Thomson1
- Thomas Wall1
- Thomas Watson1
- Thomas Windus1
- Thomas Woodward1
- Thomon Simon Jones1
- Thoumin, sieur Du Bouillon1
- Timothy Cutler1
- Timothy Manlove1
- Timothy Neve1
- Tollemache family1
- Tomlinson, Robert1
- Tommaso Compeggio1
- Tours Cathedral1
- Tracy Palmer1
- Turner Macan1
- Typographic Library and Museum1
- Ulrich Fugger1
- Unger, Anne Louise Axon, -20141
- University of Chicago Library1