. . "Patterson, Clair Cameron (full name)"@en . "American chemist" . . "1995Z"^^ . "1922Z"^^ . . "Patterson, Clair"@en . . "1995-12-05Z"^^ . . "Clair Cameron Patterson"@en . "1922-06-02Z"^^ . "Clair Cameron Patterson (June 2, 1922 \u2013 December 5, 1995) was an American geochemist. Born in Mitchellville, Iowa, United States he graduated from Grinnell College. He later received his Ph.D."@en . . . .