Arthur H. Warner was a Canadian Thoroughbred racehorse trainer and a former jockey in Toronto.
He rose to fame in the late 1950s after winning the Marine Stakes in 1958 and 1959 as a trainer.
He won more than 80 stakes throughout his career and was inducted into the Canadian Horse Racing Hall of Fame in 1984, as a trainer.
He began his early career with horses as a jockey, and later moved to training.
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