First solo cover appearance of the Martian Manhunter.
inside front cover; published in cooperation with the National Social Welfare Assembly
Writer credit determined by textual analysis by Lou Mougin.
Writer credit determined by textual analysis by Lou Mougin.
Feature continues from Detective Comics (DC, 1937 series) #326. From #143-158 J'onn J'onzz appears with alien pal Zook, usually battling the monthly menaces from the Idol-Head of Diabolu.