Glenn Shirley, an authority on the Old West, has written many books and hundreds of articles for anthologies, journals, and magazines. He is the author of Temple Houston: Lawyer with a Gun; West of Hell's Fringe: Crime, Criminals, and the Federal Peace Officer in Oklahoma Territory, 1889-1907; and Shotgun for Hire: The Story of ?Deacon? Jim Miller, Killer of Pat Garrett, all published by the University of Oklahoma Press.