Former Owner
- Lepeletier de Rosanbo1
- Leslie, John (c. 1840), bookseller1
- Library of the Dominicans of Paris1
- Louis Bourguet1
- Louis César de La Baume Le Blanc1
- Lucien Graux1
- Luigi Cora1
- Lutheran Theological Seminary at Philadelphia1
- Lydia Thompson Morris1
- Mademoiselle de Malberghe1
- Marie-François Duchesne de Beaumanoir1
- Martin Breslauer1
- Matteo Luigi Canonici1
- Medingen Abbey1
- Morris H. Morgan1
- Māḫdara Māryām Church1
- Norman Winestine1
- Paul Gottschalk1
- Percy Mordaunt Barnard1
- Petrus Jensenius1