Born in Brooklyn, New York, D'Arco grew up in Williamsburg, Brooklyn near the Brooklyn Navy Yard and attended a Catholic grammar school. At age 15, he dropped out of high school. In 1951, during the Korean War, D'Arco served two years as a volunteer in the U.S. Army.
D'Arco was born in Brooklyn, New York, grew up near Williamsburg, Brooklyn, and attended a Catholic grammar school. At fifteen, he left high school. In 1951 during the Korean War, D'Arco served two years as a volunteer in the U.S. Army.