Former Owner
- Louis Bourguet1
- Louis César de La Baume Le Blanc1
- Lucien Graux1
- Luigi Cora1
- Lutheran Theological Seminary at Philadelphia1
- Lydia Thompson Morris1
- Madame Théophile Belin1
- Mademoiselle de Malberghe1
- Maggs Bros Ltd2
- Marie-François Duchesne de Beaumanoir1
- Mark Sittich von Hohenems Altemps1
- Martin Breslauer1
- Matteo Luigi Canonici1
- Medingen Abbey1
- Messieurs Du Trieu2
- Michel Chasles1
- Morris H. Morgan1
- Māḫdara Māryām Church1
- Norman Winestine1
- Oliver Henry Perkins2