Former Owner
- Joseph Pope1
- Katherine Somerset Wyttenbach Fenwick1
- Lambach Abbey1
- Lawrence J. Schoenberg1
- Leo Olschki1
- Lucien Gougy1
- Marsden J. Perry1
- Novalesa Abbey1
- Orlandus de Fatiis1
- Paul de Berthou1
- Pauline Fore Moffitt1
- Pettini Libraria di Antonio Pettini1
- Phoebe Hearst1
- Reading Abbey1
- Richard Farmer1
- Richard Henry Wilde1
- Rosamond B. Loring1
- Sam Fogg Rare Books & Manuscripts1
- Seymour de Ricci1
- Sion College1