Complex sentence: Burston was involved in thoroughbred racing both as a punter and as a racehorse owner, and was Chairman of the Moonee Valley Racing Club from 1952 to 1960.
Split into simpler sentences: Burston was involved in thoroughbred racing both as a punter and as a racehorse owner. He served as Chairman of the Moonee Valley Racing Club from 1952 to 1960.