. . . . "Dave: 3"@en . "0"^^ . . "Margaretta: 1"@en . . . . "Rockwall, Texas"@en . . . . . . "David Groark"@en . "4"^^ . "2008-10-06"^^ . "Dave & Margaretta"@en . "1941-01-12"^^ . . . . . . "Margaretta Groark"@en . "1936-01-31"^^ . . "Married"@en . . . . "8"^^ . . . "Dave and Margaretta Groark were a team of Married 40 Years on the The Amazing Race 1."@en . "Dave and Margaretta Groark were a team of Married 40 Years on the The Amazing Race 1."@en . . . "6.5"^^ .