Lieutenant Carmelo Delgado Delgado (April 20, 1913 – April 29, 1937) was a leader of the Puerto Rican Nationalist Party (presided by Dr.
Pedro Albizu Campos).
Delgado joined the Abraham Lincoln International Brigade and fought against General Francisco Franco and the Spanish Nationalists in the Spanish Civil War.
The Republic's hero, Delgado Delgado, a Puerto Rican by birth and national origin, is thought to be the first U.S.