 While there, he participated in maneuvers on the Puerto Rican Island of Culebra.Transferred to the Marine Corps Base at Parris Island, S.C., on April 12, he served there—receiving a promotion to private first class on May 26,—until shifting duty station to what would later become Camp Lejeune at New River, N.C., on September 28.Benner was promoted to corporal on October 11, 1941 and to Sergeant on April 1, 1942.