Former Owner
- Jacques Rosenthal1
- James C. Byrne1
- James Lyell1
- Jan Six VII1
- Joachim Guerrinus de Montefegatesio1
- Johannes Wigg1
- John Dozier Gordan1
- John Harvey Treat1
- Julia Burgess1
- Kartause Erfurt1
- Katherine Somerset Wyttenbach Fenwick1
- LeMare1
- Leicester Harmsworth1
- Lepeletier de Rosanbo1
- Library of the Dominicans of Paris1
- Luigi Celotti1
- Magby, H1
- Moissac Abbey1
- Novalesa Abbey1
- Paul Riant1