On Sale date according to comiclistdatabase.com
from Master Comics (Fawcett, 1940 series) #23 (February 1942)
from Terrific Comics (Temerson / Helnit / Continental, 1944 series) #5 (September 1944)
from Wonderworld Comics (Fox, 1939 series) #31 (November 1941)
from Zip Jet (St. John, 1953 series) #2 (May 1953) [from this printing, with some additional modifications]
from Punch Comics (Chesler / Dynamic, 1941 series) #14 (July 1945) [under the title: "Terror Strikes the Turnpike", with re-worked art to turn Rocketman and Rocketgirl into the Zip-Jets]modified partially to turn this back into a Rocketman story. Originally from Punch Comics (Dynamic Publications [1940s] [Chesler], 1941 series) #14 (July 1, 1945)
from Doll Man (Quality Comics, 1941 series) #38 (February 1952)
from Cat-Man Comics (Temerson / Helnit / Continental, 1941 series) #29 (August 1945)
from The Spirit (Register and Tribune Syndicate, 1940 series) #5/5/1946 (May 5th, 1946)incorrectly credited to Klaus Nordling