"Definition of a Gentleman". Memorandum found in Lee's papers after his death. "Lee the American" by Gamaliel Bradford, p. 233, xroads.virginia.edu. 1912.
Lee Child (2015). “The Essential Jack Reacher, Volume 1, 7-Book Bundle: Persuader, The Enemy, One Shot, The Hard Way, Bad Luck and Trouble, Nothing to Lose, Gone Tomorrow”, p.1381, Delacorte Press