The on-sale date is from the publication date recorded in the Catalog of Copyright Entries, Part 2, Periodicals, 1942, New Series, Vol. 37, No. 2.
Lance Blackwood, according to the Who's Who, is a by-line found on this strip (and the pen-name of early artist Dan Zolnerowich). Writer and art credits taken from the Who's Who and from the Quality Companion (TwoMorrows, 2011 series) #nn (November 2011). Added by Craig Delich (2013-7-20).