Author: Marion Harvey
Born: 1900
Bio: Marion Harvey was the author of several mystery novels and plays between 1922 and 1935. The first of these was The Mystery of the Hidden Room. Others include The Vengeance of the Ivory Skull, The Clue of the Clock, The House of Seclusion, and The Arden Mystery. 
Barnes&Noble

These works often feature Graydon McKelvie, a Sherlock Holmes-worshipping detective. SS Van Dine noted in The Great Detective Stories, (1927) that “The deductive work done by Graydon McKelvie is at times extremely clever.” 
Harvey’s plays have been performed in New York, Alabama and Pennsylvania