"Casper, Billy"@en . "Billy Casper"@en . . "2015Z"^^ . "Buffalo Bill"@en . "1.8034"^^ . . . "1931-06-24Z"^^ . "88452.0"^^ . . "1931Z"^^ . "Billy Casper is also the name of the protagonist of A Kestrel for a Knave.William Earl Casper, Jr. (June 24, 1931 \u2013 February 7, 2015) was an American professional golfer."@en . "William Earl Casper, Jr."@en . . "2015-02-07Z"^^ . "American professional golfer" . . "Casper, William Earl, Jr.; Casper, W.E., Jr."@en . . .