Art credits from Magnus, Robot Fighter Archives (Dark Horse, 2004 series) #2 ([July] 2005).
The Comic Reader # 30, October 1964, credits Don Christensen as sole author. Info per Nick Caputo.
Includes a sketch of a robot invention by a very young Walter Simonson. Other fan art by Skip Jactche, David Marsh, Charles Koenig, and Bev Mendheim.
Letters from: Ben F. Lee, Beth Oxford, Paul G. Rauschke, Richard Drezdon, Lrisl Parker, Vincent C. Stuart II, Benjamin Urrutia, Anis-ur-Rehman Mamun, Valerie and Velinda Neat, T. Gerald McCorley, Gregg Stebbins, Frank Cherry, Arthur Roberts, Gail Sutton, William Sperry, Timothy Morris, C. John Fitzsimmons, Randy Couch, and Richard Rawls.