Golden Age artist Clemmence Gretter studied at the Iowa Academy of Fine Arts, and at the Art Institute of Chicago. Around 1926, he created the 'Kippity Skip' puzzles page for the Chicago Tribune. He was an illustrator for Dustjacket books and the Chicago Evening Post until he went to work in the comics field. Between 1929 and 1938, he worked on the syndicated 'Sue to Lou' feature.
He worked for Harry "A" Chesler's shop in the mid-1930s, and provided art for features like 'Bud and his Legendary Scouts', 'Dan Hastings', and 'Topsy Turvy' for Centaur. For National/DC, he did '2023: Super Police', 'Don Drake of the Planet Saro' and 'Ray and Gail' in More Fun Comics and New Comics. During the 1940s, he continued to work on comic books by Fawcett, Magazine Enterprises and Hawley Publications. He assisted on the syndicated 'Ripley's Believe it or not' panel between 1941 and 1949.