Notes:
Interior content largely reprinted in Heckle and Jeckle (St. John, 1951 Series) #3 (February 1952). There were two Blue Ribbon issues featuring Heckle and Jeckle (issues #1 and 3) before the regular series began with its own issue #3.
As Blue Ribbon Comics #3 is regarded in terms of issue numbering as "Heckle and Jeckle #2" by its publisher, these stories would have been printed in two consecutive issues.