Name
- Ladron de Guevara, Antonio, Don1
- Leguinazabal, Manuel, Don1
- Leon, Alonso, General1
- Leon, Fray Ygnacio1
- Leza, Gaspar, pilot, navigator and writer, fl 1595-16061
- Lima, Francisco1
- Lopez, Francisco, Don1
- Machado, Francisco1
- Marmolejo, Alonso, conquistador and chronicler, 1523-15761
- Martinez de Caceres, Josef Garcia1
- Martinez, Fernando1
- Mascaro, Manuel Agustin1
- Miro, Estevan, Governor of Louisiana1
- Monsarrat, Juan, Missionary1
- Monserrat, Joaquin, Marques de Cruillas, Viceroy of New Spain1
- Morfi, Juan Augustin, Fray1
- Mornay, of Add MS 175751
- Mossotti, Fabricio1
- Mudford, William1
- Muñoz, Gabriel, Don1