Son of Henry and Olive Beatrice Casson, of Inyanga, Southern Rhodesia. His brother William Harry also died on service. Entered Grey House in January, 1934. He passed his Junior Certificate examination in 1937, and after leaving Plumtree in December 1940, he was employed by the Imperial Tobacco Co. He attested in October, 1941, and after receiving his preliminary training in Rhodesia he proceeded to the Middle East in January 1943. On Plumtree School Roll of Honour.
LG Sup 23 June 1944 pg. 2992 - "One morning in May, 1944, this airman took part in an attack on mechanical transport on the Alatri-Frosinone Road. Despite intense opposing fire, Flight Sergeant Casson pressed home his attacks with great determination. Whilst making a second, run over the target his aircraft was hit by a shell. Flight Sergeant Casson was badly wounded in the thigh. Although faint through the loss of blood and shock, this valiant pilot flew his damaged aircraft to base. He was unable to operate one rudder-bar owing to his exhausted condition. Nevertheless, he effected a safe landing. As he was lifted from the controls, Flight Sergeant Casson collapsed. This airman displayed courage, fortitude and devotion to duty of the highest order."