I have another ‘Heyford fatality’, who seems to escaped the C&CI Dolphin book, possibly because he died on 1 December 1918 and so isn’t included in Hobson’s ‘Airmen Died’.
Lt Wilfred John Victor Sampson, a ‘Canadian’ born in Fulham, was ferrying a Dolphin (probably from 4 TDS at Hooton Park) to Upper Heyford, for 1 Squadron Canadian Air Force, when he became lost in heavy mists, attempted to land in a field, hit the lower port wing tip on a tree, and hit the ground with the engine full on. He was taken to Somerville Hospital, part of the Oxford University College forming Southern General Hospital adjacent to Radcliffe Infirmary. Sampson died of concussion and is buried at Botley.
Although I have listings of Dolphins based at Heyford, and with 4 TDS (& some with both), I have yet to identify the Dolphin Sampson was flying.