Rocket Man made his first appearance in Scoop Comics #01 (Nov 1941) published by Harry 'A' Chesler). The character appeared twice more in Scoop Comics, issues #02 and #03. He also appeared in Punch Comics, issues 09 - 21 and single appearances in Red Seal Comics #22 (Dec 1947) and Hello Pal Comics #01 (Jan 1943).
Inventor Cal Martin creates a rocket pack that allows him to jet through the air. He builds one for himself and his girlfriend Doris Dalton. Together they fight crime and the Germans as Rocket Man and Rocketgirl in matching costumes.
In Punch Comics, Cal's job was that of a lawyer.