-Australian ace pilot; 12 confirmed aerial victories.
-After pilot training he was posted to No. 3 Squadron, which was deployed for action in the Middle East in July 1940.
-Awarded the Distinguished Flying Cross in 1941 after 9 aerial victories in the North Africa and Syria-Lebanon campaigns.
-Joined the No. 75 Squadron at Port Moresby, New Guinea in March 1942.
-Claimed 3 aerial victories over Japanese aircraft during the Battle of Port Moresby.
-Took over command of No. 76 Squadron in May 1942, leading it into the Battle of Milne Bay later that year where he was killed when his aircraft crashed during a strafing run against Japanese forces.
-Airstrip No. 3 at Milne Bay was renamed 'Turnbull Field' as a tribute to his memory.
Royal Australian Air Force