David Rhys Williams wrote about what theory that Marlowe was the author of Shakespeare plays? 
David Rhys Williams: David Rhys Williams (1890 – March 28, 1970) was an American Congregational and Unitarian minister who wrote a Marlovian book called "Shakespeare Thy Name Is Marlowe". Marlovian theory of Shakespeare authorship:  Rather, the theory says Marlowe did not die in Deptford on 30 May 1593, as the historical records state, but that his death was faked.
i don't know