Indicia at bottom of page one.
Bouncing Boy misidentified as Bouncing Girl in Roll Call.
A list by Lionel English also gives the penciller and inker as "Morris Waldinger" in one of the issues this PSA appears in. Creator credits from a list by Lionel English.
Letters from: Ed Rolfe, Ken Clarke, Dexter LaCrosse, E. Nelson Bridwell, Gracie Culwell, and Ken Lowe. Bridwell later became a comic book creator.
The last new Superboy story in Adventure Comics during the Legion's run.