William du Pont, Jr.

William du Pont Jr. was an English-born American businessman and banker, and a prominent figure in the sport of Thoroughbred horse racing. He developed and designed more than 20 racing venues, including Fair Hill at his 5,000-acre estate in Maryland. A member of the Delaware Du Pont family, he was the son of William du Pont and Annie Rogers Zinn, and brother to Marion duPont Scott, a noted horsewoman and breeder.