In April of 1846 Colonel Truman Cross , Assistant Quartermaster General of Taylor's Army was out riding alone near Brownsville, Texas when he was ambushed and killed by Mexican Guerillas armed with lances. He was the first American officer killed in the Mexican-American War. By Don Troiani Native American Art, South American, American Artists, American Indians, Giclee Painting, Giclee Print, Seasons Art, Le Far West