Thanks for the confirmation, Steve. George was a very interesting character and I regret not meeting him - he died when I was only a few years old. He was a motor designer/engineer by trade and worked for Henry Royce and Frederick Lanchester before joining the RNVR in WW1. He then transferred to the RNAS where he worked on aircraft engines as well as the Lanchester and Rolls Royce armoured cars.
He transferred to the RAF in 1918 and learned to fly in 1921; he started as a flight lieutenant and was promoted to squadron leader in 1928. He retired in 1936 but came out of retirement in 1940/41 to work as chief engineer in the ATA at RAF Sealand near Chester. His ATA records seem to have been lost, unfortunately.