Whited, Stephen R. (2002). „Kentucky Tragedy”. in Joseph M. Flora and Lucinda Hardwick MacKethan. The Companion to Southern Literature: Themes, Genres, Places, People. Associate Editor: Todd W. Taylor. LSU Press. s. 404–405. ISBN 0-8071-2692-6. http://books.google.com/books?id=rl5_5u3tiRkC. Retrieved on 2008-01-24.
