This cover had been previously credited to George Roussos by DC and Joe Giella and/or Jack Abel by art spotters. Giella denied having inked the cover in a correspondence with Bryan Stroud and Abel inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (May 2008).
Jim Shooter credit added based on an interview with Shooter by the Silver Age Sage
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (May 2007).
letters submitted by Joe Arul; Leonard Rosenberg; Steven Carlberg
letters submitted by Marv Wolfman; Dennis Casey; Steve Simels