On the inside front cover.
Art credits from Bob Hughes, Gene Reed, Merlin Haas, Edgar Loftin, and Allen Ross. Loftin and Ross question Mayer inks credit. Bob Bailey argues Bob Oksner base with Mayer heads.
Woolfolk credit from Martin O'Hearn at http://martinohearn.blogspot.com/
There was a Superman TV show based on this particular story (or maybe the other way around).
Letters credit from Todd Klein via his Klein Letters blog (19 September 2016, http://kleinletters.com/Blog/ira-schnapp-in-worlds-finest-comics-part-2/).
Letters credit from Todd Klein via his Klein Letters blog (19 September 2016, http://kleinletters.com/Blog/ira-schnapp-in-worlds-finest-comics-part-2/).
Originally scheduled for Danger Trail #6, which was never published. Pencils credit from Gene Reed based on copies of editorial records received from Nelson Bridwell in 1986. Records also show that the original title for this story was "Lisbon Legacy."
Credits by Pat Lang and Craig Delich.