Background on Walter Mason Dickinson
Born and raised in Amherst, Mass., a descendant of one of the founders of Hadley, Walter Mason Dickinson entered the Massachusetts Agricultural College in 1873, but left after his junior year to accept an appointment in the Class of 1880 at West Point. Graduating 27th, Dickinson was assigned for duty with the 4th Cavalry, serving at Fort Sill in the Indian Territory and elsewhere in the Southwest and at Jefferson Barracks in St. Louis (1887-1889). In 1891, he was granted transfer to the 17th Infantry and detailed as a Professor of Military Science at Massachusetts Agricultural College, but in 1896, he returned to his old regiment as quartermaster, then in garrison at Columbus, Ohio.
With the escalation of the Spanish American War in April 1898, the 4th Cavalry was called into service and sent to Cuba as part of the invasion force. On July 1, one day before the American assault on the nearby San Juan Hills, Dickinson was part of a force that assaulted Spanish fortifications at El Caney. Struck in the right arm, Dickinson was shot a second time while attending to a wounded comrade, and a third and fourth time while lying a litter, awaiting medical attention. He died of his wounds on July 2, and after initial burial in Santiago, his body was reinterred in Arlington National Cemetery.