...a war, and was on frontier duty at Fort Leavenworth, Kan., when he was promoted to first lieutenant, February, 1844. He participated in the Mexican war, and was engaged in the battles of Palo Alto, Resaca de la Palma and Monterey, and the siege of Vera Cruz. After the fall of that city he remained there on commissary duty until October. In that month he resigned and returned to the United States. He was pro...