- Langlois de saint denis.1
- Lawson, Herman A. (Herman Albert), 1897- author1
- Laycock, Thomas, 1812-18761
- Leo-Wolf, Moritz.20
- Lewis, Ellis, fl. 18181
- Library of the Surgeon-General's Office (U.S.)1
- Lloyd, William, fl. 17941
- Ludlow, Edward G. (Edward Greenleaf), 1793-18771