- Machado, João Ferreira da Silva, author1
- Mackenzie, John N., author1
- Menezes, Carlos Vieira de, author1
- Montgomery, Douglass W. (Douglass William), 1859-1941 author1
- Montgomery, Douglass W. (Douglass William), 1859-1941, author1
- Morgan, Ethelbert C., author1