Major General Stuart Heintzelman (19 November 1876 – 6 July 1935) was an American soldier. He was a grandson of Civil War general Samuel P. Heintzelman He was commissioned as a Second Lieutenant of Cavalry from the United States Military Academy in 1899. For the first five years of his career, he served with the 6th Cavalry in Kansas and Idaho, the 4th Cavalry in the Philippines, and as part of the international force putting down the Boxer uprising in China. In 1904, Heintzelman began what would become a long and distinguished association with Fort Leavenworth when he was selected as the Infantry and Cavalry School honor graduate. After service in the Philippines, Heintzelman returned to Fort Leavenworth as an instructor followed by another academic assignment as the Professor of Military