Museum of Art, Brigham Young University Digital Library Collection, 2002 (Abel, Jack, 1927-1996)
Essential Iron Man, Vol. 5, 2013 issue credits (inker, Jack Abel)
Lambiek, via WWW, Dec. 5, 2013 (Jack Abel (15 July 1927 - 6 Mar 1996, USA); worked for many companies, beginning in the early 1950s, primarily as an inker. He was one of the main inkers on DC's 'Superman' and 'Legion of Super-Heroes' in the late 1960s and early 1970s. He pencilled horror stories and did inks on western, science-fiction and war stories for various publications; worked at Marvel from the 1970s up until his death in 1996)
Wikipedia, viewed Dec. 5, 2013 (Jack Abel a.k.a. Gary Michaels, July 15, 1927 - March 6, 1996; 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.)