Manuel Mondragón

Manuel Mondragón Montenegro (1859–1922) was a Mexican military officer who played a prominent role in the Mexican Revolution. He graduated from the Mexican Military Academy as an artillery officer in 1880. He designed the world's first gas-operated semi-automatic rifle, the M1908 rifle, and a 75mm howitzer. General Mondragón was the father of a model, artist and poet Carmen Mondragón, better known as Nahui Ollin.