Along with Lt. J.O. Mauborgne, he became the first Army airmen to transmit and receive radio messages while in flight.
Transferred to the 1st Aero Squadron at San Antonio where he flew surveillance of the U.S.-Mexico border to pursue Pancho Villa.
Made the first planned Army night flight and landing with another pilot in 1917.
Established and later commanded the School for Aerial Observation in Oklahoma.
Chosen as Commanding Officer of the record-making Pan-American Good Will Flight, the first aerial circumnavigation of South America, in 1926.
Assigned as commanding officer of the 2nd Bombardment Group at Langley Field. In 1934, he became Assistant Commandant of the Air Corps Tactical School at Maxwell Field, Alabama. There he helped to develop and test what would become the Norden Bombsight.
Took command of the First Air Force at Mitchel Field in 1941