Creator
- Longo. M. 1
- Look & Morrison1
- Lopez, Francisco I.1
- Lopez, George1
- Lopez, Roberta1
- Lopez-Portillo y Lancaster-Jones, Rodrigo1
- Lorenz, Raymond J.1
- Louis C. Wagner & Company1
- Louis E. Neuman & Company Litho1
- Louis Heltman Company1
- Louisville & Nashville Railroad1
- Lounsberry, Vernon L.1
- Loving Committed Network (Orlando, Fla.)1
- Lowry, Willie1
- Lozano, Pendas, and Company1
- Luce Turnier, 1924-19941
- Lucitt, Raymond1
- Lue, Gim Gong (1860-1925)1
- Lueders, William L.1
- Luis Zamorano Gonzalez1