Former Owner
- Julia Burgess6
- Julie de Busnel1
- Julien Peridier1
- Karen L. Gould10
- Keith Jarvis2
- Laurence Claiborne Witten II1
- Laurence William Hodson1
- Laurent Campagne1
- Lawrence J. Schoenberg3
- LeMare1
- Legoué1
- Leo Olschki1
- Leo S. Olschki Editore2
- Lepeletier de Rosanbo1
- Lewis L. Gould7
- Librairie Damascène Morgand1
- Library of the Dominicans of Paris1
- Lima Public Library2
- Linda Ehrsam Voigts2
- Lisa Kiser3