Former Owner
- William Noel-Hill, 3rd Baron Berwick1
- William O. Petersen1
- William Pownall1
- William Ralph Inge1
- William Roscoe1
- William S. Spaulding1
- William Stuart1
- William Targ1
- William Thynne1
- William Trench1
- William Tyssen-Amherst, 1st Baron Amherst of Hackney1
- William Wentworth-Fitzwilliam, 7th Earl Fitzwilliam1
- William Wix1
- William Wynham1
- Winslow Lewis1
- Wolfgang G. Scholz1
- Wolfgang Sigismund, Graf von Gallenberg1
- Wolfgang Täxer1
- Wolfman, Wm1
- Woodward-Ruth Collection1