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.