August 27, 1915 - March 19, 1965
LAC Marshall Nielsen Limon was a member of 440 Squadron, as an Armourer Bombs. He was a witness to a crash that claimed 440's McConvey and two ground crew from 438: Holmes and Wilman in July 1944.
Researching his name, there is a man with the same name from North Vancouver, BC, who was an Olympic athlete at the 1936 Summer Games in Berlin, Germany. He participated in the 400 metre race, coming 4th in the second heat. His overall results from his time: 18th place. He was 20 years old at that time.
Limon (Marshall Nielsen Limon, born August 27, 1915 in Vancouver, † March 19, 1965 in North Vancouver, was a Canadian sprinter who had specialized in the 400 -meter run. At the 1936 Olympic Games in Berlin, he reached the quarter-finals over 400 m and finished fourth in the 4 x 400-meter relay. Wikipedia