Kubert's first work for DC Comics, where he would spend much of his career and produce some of his most notable art, was penciling and inking the 50-page "Seven Soldiers of Victory" superhero-team story in "Leading Comics" #8 (Fall 1943), published by a DC predecessor company, All-American Publications. Throughout the decade, Kubert's art would appear in comics from Fiction House, Avon, and Harvey Comics, but he otherwise worked exclusively for All-American and DC. Kubert's long association with the Hawkman character began with the story "A Hot Time in the Old Town" in "The Big All-American Comic Book" (1944). Kubert drew several Hawkman stories in that title as well as in "All Star Comics". He and Irwin Hasen drew the debut of the Injustice Society in "All Star Comics" #37 (Oct. 1947) in a tale written by Robert Kanigher. The Kanigher/Kubert team created the Thorn in "Flash Comics" #89 (Nov. 1947).