De originele Atom werd bedacht door Ben Flinton en Bill O'Connor, en maakte zijn debuut in All-American Publications' "All-American Comics" #19 (Okt. ###>The original Golden Age Atom, Al Pratt, was created by Ben Flinton and Bill O'Connor and first appeared in All-American Publications' "All-American Comics" #19 (Oct. 1940).