Career
He was his squadron"s first ace. MacArthur was an electrical engineer before he joined the United States. Army Air Force. MacArthur downed his half dozen Germany planes from 13 June through 19 July 1918, including a pair of Fokker Doctorate.VIIs shared with Donald Hudson, and three other pilots on 2 July.
On 20 July 1918, he was one of three pilots forced down and killed by stormy weather.