Can't help with the main part of your request for the pilots identity but my small input is to mention that the letters on the parachute strap are IRVIN:
Leslie Irvin was the inventor of the parachute “rip-cord” system and, in 1919, was the first man to make a premeditated free-fall jump from an aeroplane. The Irvin parachute was quickly recognised as an important piece of aviation equipment and in June 1919 Irvin set up Irvin Air Chute to manufacture parachutes for the U.S. government. In 1926 he opened a factory in the UK, at Letchworth and by the end of the 1930s Irvin parachutes were in use worldwide.
As aviation advanced so did the altitudes to which pilots could fly. Suddenly aircrew were flying to thousands of feet where temperatures would easily be sub-zero, not a good thing when aircraft construction still provided basic, un-insulated cockpits. This situation drove Irvin to create The Irvin Flying Jacket.