Jack D. Rule Jr. (born November 13, 1938) is an American professional golfer. He played on the PGA Tour in the 1960s. Rule was born in Mason City, Iowa.[1] He beat Jack Nicklaus in the 1956 U.S. Junior Amateur semi-finals.
Rule won twice on the PGA Tour, the 1963 St. Paul Open Invitational and the 1965 Oklahoma City Open Invitational.[2]
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