Former Owner
- Joseph E. Widener1
- Ludwig Rosenthal1
- Luigi Arrigoni1
- Maggs Bros Ltd1
- Maksymilian Mielzynski1
- Mannheimer Hofbibliothek1
- Marchese Linterno1
- Marie-François Duchesne de Beaumanoir1
- Percy Mordaunt Barnard1
- Preston A. Perry1
- Richard Hooker1
- S. S. Conant1
- Samuel Wix1
- Sir Alexander Campbell1
- Thomas Barber1
- Thomas Boult1
- Thomas Dackomb1
- Thomas Gardner1
- Thomas Thorpe1
- Wilfrid Voynich1