. "Billy Watson"@en . . "1915Z"^^ . "William \"Billy\" John Potts, OOnt (June 25, 1915 \u2013 February 4, 1990) was a Canadian professional wrestler best known by his ring name \"Whipper\" Billy Watson, and was a two-time world heavyweight wrestling champion."@en . "1915-06-25Z"^^ . "1990Z"^^ . . "1990-02-04Z"^^ . "Canadian professional wrestler and trainer" . . "Whipper Billy Watson"@en . "Watson, Billy"@en . "1971Z"^^ . . . "Billy Potts"@en .