Former Owner
- Walter van Wijk1
- Wasservas1
- Wesley L. Boomgaarden1
- Wilfrid Voynich3
- William Augustus White1
- William Bragge4
- William Chmurny8
- William Cumming Wilde1
- William Douglas-Hamilton, 12th Duke of Hamilton1
- William E. S. (William Edward Seaver) Whitman1
- William Ely1
- William Ewart Gladstone1
- William F. Fratcher1
- William Foyle2
- William Gibbons Medlicott1
- William H. Crain5
- William H. Herriman1
- William H. Robinson Ltd.21
- William H. Schab2
- William Harris Arnold1