Detlev Buck and Herschell Gordon Lewis, are American?
Detlev Buck Detlev Buck (born December 1, 1962 in Bad Segeberg) is a German film director, actor, producer and screenwriter.
Donald John Lewis Donald John Lewis (25 January 1926 – 25 February 2015), better known as D.J. Lewis, was an American mathematician specializing in number theory.