On-sale date from copyright registration.
Tatjana Wood formerly suggested as colorist, but Todd Klein posted the signed color guide in his blog (http://kleinletters.com/Blog/?p=2035).
Introductory strip. Script credit per reprint in House of Secrets: The Bronze Age Omnibus (DC, 2018 series) #1.
Mark Evanier discusses the origin of this story in The Jack Kirby Collector #40. Index originally had Joe Orlando as a co-writer as well, but Evanier submitted an Error Report saying this was not the case.
Letters from: Cynthia, John Cawley, Shannon Foster, Bill Winans and Jay Zilber.
Script and art credits per reprint in House of Secrets: The Bronze Age Omnibus (DC, 2018 series) #1.