Former Owner
- T. Royer1
- T. Whitcombe Greene1
- That Guy with the Books1
- Thomas Appleby1
- Thomas Bateman1
- Thomas Gage1
- Thomas Kerrich1
- Thomas Mildmay1
- Thomas Windus1
- Vittorio Forti1
- W. E. Bools, Esq.1
- Walter John Bruce Richards1
- Wesley L. Boomgaarden1
- Wilfrid Voynich1
- William Bateman1
- William Burdett-Coutts1
- William Gonstone1
- William H. Herriman1
- William H. Woodin1
- William Inglis Morse1