The on-sale date is from the publication date recorded in the Catalog of Copyright Entries, Part 2, Periodicals, 1943, New Series, Vol. 38, No. 1.
First Mary Marvel strip.
Last appearance in Captain Marvel Adventures #19.
Brian Butler loses his job as DA.
Plot and art credit revision per Will Murray in Alter Ego #157 (March 2019).
last Spooks story; contents page title