Former Owner
- Vatican Library1
- Volpi1
- W. P. Hall Walker1
- Walter Ambrose Heath Harding1
- Walter Raglan Hubbard1
- Weiss & Co.1
- Wild, Henry D.1
- William Bateman1
- William Burdett-Coutts1
- William Cecil, 1st Baron Burghley1
- William Foyle1
- William Harcourt Hooper1
- William Hargrave Dawson1
- William Inglis Morse1
- William Lymnor of Sharrington1
- William Maskell1
- William Morris1
- William Ralph Inge1
- William Thynne1
- William Tyssen-Amherst, 1st Baron Amherst of Hackney1