Creator
- Langenheim, Frederick, 1809-18792
- Langenheim, Loyd & Co.2
- Langenheim, William, 1807-18742
- Lee, Mary Randolph Custis, 1808-18732
- Leet Bros.1
- Leutze, Emanuel, 1816-18681
- Levitsky, 1819-18981
- Lewis, Annie Burr Auchincloss, 1902-19591
- Loeffler, J. (John Jacob), 1834-19013
- London Stereoscopic Company6
- Loyd, William1