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Edward Riley Bradley (born 1859, Pennsylvania, U.S.—died Aug. 15, 1946, Lexington, Ky.) was a U.S. sportsman, gambler, philanthropist, owner and racer of Thoroughbreds, four of whom won the Kentucky Derby. As a boy, Bradley worked in steel mills, then went to the Southwest, where he became a cowboy and fought Indians and was briefly a miner before he turned to gambling, which became a lifelong passion. Before the turn of the century, he opened a...