Cover inks credit from Sinnott's personal records.
First credited colorist.
Marie Severin credited for 'good works'. This is probably for caricatures of DC and Marvel staff who appear in the story.
This is part of a three-way crossover set at the Annual Rutland, VT. Halloween parade. First off, it crosses over with the Beast story in Amazing Adventures #16, and it crosses over (with the same Marvel and DC guys, only the names of the heroes have been changed) into Justice League of America #103 at DC! The creators doing the crossing are Steve Englehart, Gerry Conway, and Len and Glynis Wein.