The on-sale date is from the publication date recorded in the Catalog of Copyright Entries, Part 2, Periodicals, 1942, New Series, Vol. 37, No. 3.
Penciler revision from C. C. Beck and inker revision from Pete Costanza ? to Harford by Craig Delich, per P.C. Hamerlinck on Page 91 of Alter Ego #139 (May, 2016). The original cover art is also portrayed.
Letterer credit added by Craig Delich 2010-2-4.
Minute Man begins wearing a mask in this story.
Writer credit determined by textual analysis by Lou Mougin.