Lex Luthor app.
Swan was a house artist at DC working on titles like Tommy Tomorrow, he began gravitating towards Superman and his related books, Superboy, World's Finest and Jimmy Olsen, he would eventually leave DC thanks to his personality issue with Editor In Chief Mort Weisinger. He would eventually return and go on to be the artist that defined the look of Superman in the Silver Age, eventually becoming the editor of the title, but after thirty years of keeping up standards of all things Superman, Swan was given the boot in favor of John Byrne's Superman reboot, Swan's comic work began to taper off after this dismissal and he eventually retired, but will forever be recognized as the Silver Age Superman's finest artist.
Kurt Schaffenberger's first job in comics came in June of 1941, when he was assigned to inking backgrounds for a 'Captain Marvel' story for Fawcett. After the war, Schaffenberger joined the studio of C.C. Beck and Pete Costanza, and his work expanded by becoming a featured artist on 'Ibis the Invincible', also by Fawcett. Schaffenberger was hired by DC Comics in 1957 to become the artist on 'Lois Lane'. From there, Schaffenberger became a regular contributor to the entire Superman comics line. He later became a frequent artist on the anthology series 'The Superman Family'. Schaffenberger also created artwork for DC's Shazam! series after C.C. Beck's departure. In 1968, Kurt Schaffenberger succeeded Jim Mooney as the artist on the 'Supergirl' feature.