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. 1.
formerly credited to Dan Zolnerowich.
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. Added by Craig Delich (2013-7-18).