"Frederic William Hafferty"@de-DE . "Frederic Hafferty" . "Frederic W. Hafferty" . . . . . . "Hafferty"@en . . "Hafferty"@fr-FR . "Frederic W." . "1947-12-20" . . . "W."@en . "Frederic"@en . "Frederic William Hafferty" . . "Frederic W. Hafferty"@en . "William" . . . "Frederic Hafferty" . "Frederic William" . . .