The Korean War air campaign became very hectic in 1951 over a section of air space that was notoriously known as Mig Ally. At first, the American F-86 Sabre jets were achieving good success, but the Soviets sent some of their own aircrew to help the North Korean and the Chinese in their air battles against the Americans and other allies of South Korea.
These new Soviet pilots were more experienced and better trained then their North Korean and Chinese allies. Before their arrival many of the Mig 15 jets were used on an individual basis by communist pilots with no effective strategy. The Soviets were to be more coordinated in attack and a legend of a flying ace called Casey Jones was born in the Summer of 1951.
In truth the myth of Casey Jones was not the nickname of a particular individual, but the name given by American crew to the flight leader and coordinator of the Soviet Mig 15 squadrons. So, whoever commanded the Soviet squadron on a particular day, was called Casey Jones for that individual mission by his respectable enemies.
However in September of 1951 an American F-86 Sabre pilot got into a duel with a Mig - 15 who was Casey Jones during the mission for that day. The American pilot was called Winton 'Bones' Marshall while the Soviet was called German T.Shatalov.