Former Owner
- Thomas G. Bergin1
- Thomas Stonor, 3rd Baron Camoys1
- Thomas Syddell1
- Thomas Thomson1
- Thomas de Grey, 2nd Earl de Grey1
- Timothy Cutler1
- Tommaso Compeggio1
- Ulrich Fugger1
- Vatican Library1
- Veit Engelhard Holtzschuher1
- Veit Georg Holtzschuher1
- Victor A. Schwarz1
- Vincenzo Maria Carafa, principe di Roccella1
- Volpi1
- W. Wollaston1
- Walter Ashburner1
- Walter Wehle Naumburg1
- Wilfrid Voynich1
- William Appleton1
- William Babthorpe1