Former Owner
- John Lumley, 1st Baron Lumley1
- John Sidney Hawkins1
- John Taylor1
- John Topham1
- Joseph Barrois1
- Joseph Haslewood1
- Joseph Mayner1
- Joseph Pulilo1
- José Antonio Conde1
- Juan de Iriarte y Cisneros1
- Julia Burgess1
- Lepeletier de Rosanbo1
- Lew David Feldman1
- Librairie Tross1
- Library of the Dominicans of Paris1
- Lorenzo Antonio da Ponte1
- Louis César de La Baume Le Blanc1
- Louis H. Silver1
- Louis Thompson Rowe1
- M. Haimmiller1