Joe Kubert (Sept. 18, 1926 - Aug. 12, 2012) began his career at the age of 13. He was also an art teacher and founder of The Kubert School. He is best known for his work on the characters like Sgt. Rock, Hawkman, Tor, Son of Sinbad and the Viking Prince.
Jack Abel was an American comic book artist best known as an inker for leading publishers DC Comics and Marvel Comics. He was DC's primary inker on the Superman titles in the late 1960s and early 1970s, and inked penciler Herb Trimpe's introduction of the popular superhero Wolverine in The Incredible Hulk #181. He sometimes used the pseudonym Gary Michaels.