Former Owner
- Acton Griscom3
- Alfred Henry Huth3
- Ambroise Firmin Didot3
- Charles Sumner3
- George Dunn3
- John Rolls, 1st Baron Llangattock3
- Leonello d'Este, Marquis of Ferrara3
- Luigi Celotti3
- Mary W. T. Dickinson3
- Matteo Luigi Canonici3
- Morris H. Morgan3
- Paul Riant3
- Robert Lehman3
- Wilfrid Voynich3
- Adriana R. Salem2
- Baldassarre Boncompagni2
- Benedetto Affaticati2
- Benjamin Franklin Stevens2
- Certosa di Farneta, Province of Lucca2
- Charles Butler2