In World War II, Throckmorton was assigned to the G3 Section, First Army in the European Theater from 1943 to 1946.

Throckmorton served from 1959 to 1960 as Assistant Commanding General, 101st Airborne Division, followed by an assignment as Secretary General Staff, Office of the Chief of Staff Army from 1960 to 1962.

His service in Vietnam was followed by an assignment as Deputy Commander, Office of the Chief Army Reserve from 1965 to 1966.

He died on 13 February 1986, and was buried at Arlington National Cemetery[2] next to his wife, Regina Theresa Higgins, whom he married on 16 October 1937.

[3] This article incorporates public domain material from the United States Army