* | February 21, 1903 Decatur, Illinois | |
† | January 7, 1996 Los Angeles |
George Stevens, Jr (ed.) Conversations with the great moviemakers of Hollywood's golden age at the American Film Institute New York, 2006 |
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Tom Pendergast, Sara Pendergast (eds.) International Dictionary of Films and Filmmakers, 4. Writers and Production Artists Detroit/New York/San Francisco/London/Boston/Woodbridge, CT, 2000 |
Kay Weniger Das große Personenlexikon des Films, Zweiter Band, C-F Berlin, 2001 |