Former Owner
- Thomas Syddell1
- Thomas Thorpe3
- Tobin Anderson1
- Ulrico Hoepli1
- Vatican Library1
- Victor Christ2
- Vincenzo Malacarne1
- Vincenzo Paolino Missinisi1
- Virginia Brown1
- Vladimir G. Simkhovitch3
- W. H. R. Blacking1
- Walter Ashburner2
- Walter Sneyd20
- Walter T. Wallace1
- Walter Thomas Wallace1
- Walter van Wijk1
- Wasservas1
- Wesley L. Boomgaarden1
- Wilfrid Voynich3
- William Augustus White1