- Lambert, Gustaf E.5
- Lazear, Jesse William, 1866-19002
- Lazear, Mabel H., 1874-19462
- LePrince, Joseph Albert Augustin, 1875-19
- LeRoy y Cassá, Jorge, 1867-19341
- Leon, Estela Agramonte Rodriguez1
- Lodge, Henry Cabot, 1850-19241
- Love, Albert G. (Albert Gallatin), 1877-1
- Lyons, Bertha L.2
- Lyster, Theodore C.1