Julius Schwartz's editorial records, provided by DC Comics, show Ross Andru as being paid for the pencils and inks for the cover, however Mike Esposito worked with Ross and inked and signed the cover. Schwartz kept editorial records for Robert Kanigher who edited this issue.
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. Schwartz kept editorial records for Robert Kanigher who edited this issue.
The records show the initials HM next to the due date for the lettering of this story but Nick Caputo believes the lettering is by John Duffy.
Story across 23 pages in three parts of 5.5, 5.5, 10.5 pages.
Idea from John Hendrick, Edwards, N.Y.
Irene Vartanoff responds to her letter being included as a story element in Metal Men #21.