On sale date from the publication date found in the Catalog of Copyright Entries, Part 2, Periodicals, New Series, Volume 35, 1940, Number 2. Second class permit. Copyright number 451191.
Storyline never resolved.
"Joe Simon?" removed from inks credit.
Pencils and inks credits by Greg Theakston.
Letters credit identified by Greg Theakston and later Harry Mendryk on the Jack Kirby Museum web page http://kirbymuseum.org/blogs/simonandkirby/archives/2369, 31 October 2008 (retrieved 15 December 2014).
Navy Jones revealed as the great-great-grandson of Davy Jones (locker also revealed)