Lettering and coloring credits from Carl Gafford in a December 2010 e-mail.
Inside front cover.
An original adventure based on their origin in Showcase #6 and Challengers of the Unknown #31.
First appearance of Sun Boy; original story is partially rewritten from "The Two Clark Kents" in Adventure Comics #191 (August 1953). Reformatted to fill 14 full pages.
First appearance of Legion of Super-Pets; first appearance of Comet the Super-Horse.
The original page 12 (a half page) removed and the original page 23 reformatted to a full page so that the original story over 23 pages fits into 22 full pages.
Inside back cover.
Back cover. Previews of the stories in the issue.