He raced a number of top horses and in 1916 won the Kentucky Derby with his colt , George Smith .
His father had been successful in racing and John Sanford would become a major figure in the industry .
John Sanford raced a number of top horses and in 1916 won the Kentucky Derby with John Sanford 's colt , George Smith .
His father had been successful in racing and John Sanford would become a major figure in the industry .