Career
Remaining in the Royal Air Force after the War, he was promoted to air commodore on 30 June 1923. In the first half of the 1920s he held senior positions on Royal Air Force Iraq Command, the British organisation responsible for maintaining control of Iraq. Towards the end of 1925 Hearson was appointed Air Officer Commanding the Special Reserve and Auxiliary Air Force which later became the Air Defence Group and then Number.
1 (Air Defence) Group.
Hearson retired from the Royal Air Force in 1927 but returned to service in the build up before World World War II to establish and command the United Kingdom"s barrage balloon organisation.