Possible Hubbell inks per Nick Caputo via the GCD Error List (November 2006). Nick has examined the art at his blog:
http://nick-caputo.blogspot.com/2014/06/the-unknown-art-of-carl-hubbell.ht…
Original indexer credited Dick Ayers.
Ad for Merry Marvel Marching Society including names of 25 members. image of Kid Colt from earlier issue.
Letters from Jim Irving, Ray Torres, and Alvin Grimes; includes The Mighty Marvel Checklist and announcement of Kid Colt Annual which was not published.