Robert M. Losey

Captain Robert Moffat Losey (; May 27, 1908 – April 21, 1940), an aeronautical meteorologist, is considered to be the first American military casualty in World War II. While serving as a military attaché prior to America's entry into the war, Losey was killed on April 21, 1940, during a German bombardment in Norway. He had been attempting to complete the evacuation of the American diplomatic legation from Norway to Sweden in the wake of the German invasion. Provided by Wikipedia