Darby Mitchell's essay, ''And thereby hangs a tail/tale': the Memoirs of an Arse Poetica' is available on disk at castlepublishing.net or from the author.
Mitchell's theory is based on her discovery of a diary by a Richard Boyle, THE LISMORE PAPERS.
She writes "This strange diary is written in verbal circles. In it the narrator arrives in Ireland for the first time -- twice in Ireland twice. The first arrival is probably the true date for the arrival of the real Richard Boyle; the second arrival occurs two weeks after the supposed death of Marlowe at Deptford. Thus there seem to be two Richard Boyles. "
Published to day Google Groups (humanities.lit.authors.shakespeare) Shakespeare authorship controversy/Marlowe