Former Owner
- William Mahl1
- William N. Bullard1
- William Pownall1
- William Ralph Inge1
- William Roscoe1
- William S. Spaulding1
- William Stuart1
- William Targ1
- 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
- Wolfman, Wm1
- Woodward-Ruth Collection1
- Written in Flanders in the second quarter of the fifteenth century. A clipping accompanying the book from the GTS(?) Bulletin June 1968 says that Dr. John Plummer of the Pierpont Morgan Library identified the book1
- Written in France in the fourth quarter of the fifteenth century. The ownership portrait on f. 29 and the feminine forms in several prayers indicate that the book was made for a woman.1
- Written in Spain in the sixteenth century. A typed description of unknown origin attached to front pastedown suggests that the manuscript was written by an Italian scribe about 1500.1