"Screwtape". The Barley Sheaf Players. Retrieved 24 November 2018.
calvinandhobbes.com
Watterson, Bill. "About Calvin and Hobbes". www.calvinandhobbes.com. Retrieved 30 March 2020. As a few readers guessed, Miss Wormwood is named after the apprentice devil in C.S. Lewis's The Screwtape Letters.