
#6
Jul 1955
Catalog data from Metron and the Grand Comics Database is licensed CC BY-SA 4.0 and was normalized by The Collector. Cover images belong to their publishers.

#8
Jan 1956
Who made the most issues of this run, with the issues they span.
Who appears most often in this run, by issues they appear in.
There is a gap between #52 (January 1965) and #53 (October 1965).
The numbering was continued without much of a gap in Summer Fun, then continued many years later in a second Li'l Genius series, which was virtually all reprints from this series.
Tracking: Numbering continues in Li'l Genius (Charlton, 1985 series).
From the Grand Comics Database.