Started his riding career at Liverpool (Chads) in 1936 moving to Belle Vue (Aces) in 1937 remaining until 1939 although he is recorded as having ridden for Stoke (Potters) also during 1939. There is little doubt that his short stay to Stoke was due to the declaration of World War II.
1946 saw the resumption of league speedway in the UK it also saw Oliver Hart back on the speedway machine this time for the Wimbledon (Dons) although his stay was short moving to Bradford, Odsal (Boomerangs later Tudors) where he stayed until 1952.
Oliver rode on several occasions as part of the England team between 1948 & 1951 and also qualified in 1949 for the World Speedway Championship final in 1936 as a reserve.
Both he and his brother Ron were speedway riders and I am told Oliver founded a substantional fleet of trucks and heavy transport known as Hart & Sons transport, some redesigning of these trucks by Oliver enabled heavier loads to be carried. As an ex-speedway rider he was not alone in turning to transport it would seem that many did, including riders Ron Clarke & Ron Mason. It is interesting to note that Oliver Hart joined the two Rons in taking over the promotion at Odsal running open meetings and taking over the remaining matches when Birmingham pulled out in the middle of the 1957 season.
Oliver died in 1983 and will always be remembered as the last of the leg trailers, although I expect others did use this method of riding after Hart, he was, I believe, the last to always ride in that spectacular manner.