Captain Marvel Jr. #23

Captain Marvel Jr. — Fawcett Publications

Issue: #23

Last valuation update: 2026-09-08

Captain Marvel Jr. and the Flying FactoryCaptain Marvel Jr. Battles the Spoil-SportsThe Missing Grenade (text story)Simp Simon and the JinxCaptain Marvel Jr. and the Men Beasts

First appearances: Jinx, Simp Simon

Creators: Otto Binder, Mac Raboy, Al Carreno

Characters: Freddy Freeman, Jinx, Simp Simon