(en) Mike Seate, Jesse James : The Man and His Machines, MBI Publishing Company, , 189 p. (ISBN0-7603-1614-7, lire en ligne), p. 35, 67, 78
(en) Ups & Downs, vol. 44, CBS Publications (lire en ligne), p. 36
(en) Matthew Drutt et Thomas Krens, Motorcycle Mania : The Biker Book, The Solomon R. Guggenheim Foundation, New York, and Universe Publishing, (ISBN0-7893-0132-6, lire en ligne)
(en) Mike Seate, Simon Green et Steve Terry, Techno-Chop : The New Breed of Chopper Builders, MBI Publishing Company, , 127 p. (ISBN0-7603-2116-7, lire en ligne), p. 13