Some info verified using a DCM scan (http://digitalcomicmuseum.com/)
The on-sale date is from the publication date recorded in the Catalog of Copyright Entries, Part 2, Periodicals, 1941, New Series, Vol. 36, No. 3.
Continued from the Midshipman story in Pep Comics (Archie, 1940 series) #4. Continued in The West Pointer story in this issue.
continued from The Wizard story in this issue. Continued in the Shield story in Pep Comics (Archie, 1940 series) #5.