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John Donald Blackburn (born May 14, 1938) is a Canadian former professional ice hockey left winger who played in the National Hockey League (NHL) with the Boston Bruins, Philadelphia Flyers, New York Rangers, New York Islanders and Minnesota North Stars. He also played in the World Hockey Association (WHA) with the New England Whalers. After retiring in 1976 he became a coach with the Whalers, and remained in that position through 1981, serving as their first coach when they joined the NHL in 1979 as the Hartford Whalers.