Former Owner
- Sydney Cockerell4
- Theodorico de Buckinstorff1
- Thomas F. Richardson1
- Thomas FitzRoy Phillipps Fenwick3
- Thomas Pennant1
- Thomas Phillipps29
- Thomas Rodd1
- Thomas Thorpe1
- Thomas Watson1
- Ulrich Fugger1
- W. Echter1
- W. J. Gilbert1
- Walter Ambrose Heath Harding1
- Walter Raglan Hubbard1
- Walter Seton1
- Walter van Wijk1
- Weissenau Abbey1
- Wheldon & Wesley1
- Wilfrid Voynich1
- William Boyle Gourley1