Former Owner
- John R. Anderson & Co1
- John Roland Abbey1
- John Sotheby1
- John Trotter Brockett1
- Joseph François René de Kergariou1
- Joseph Pope1
- Joseph Whitney1
- José Antonio Conde1
- Jules Bonhomme1
- Justin MacCarthy Reagh1
- Lathrop Colgate Harper1
- Laurence William Hodson1
- Laurent Campagne1
- LeMare1
- Legoué1
- Leo Olschki1
- Lepeletier de Rosanbo1
- Librairie Damascène Morgand1
- Library of the Dominicans of Paris1
- Lisa Norris Elkins1