In Westport, Connecticut, Clymer continued his studies under N.C. Wyeth and the painter and teacher Harvey Dunn[1] and established his career as an illustrator for American magazines, including Argosy, The Saturday Evening Post, Woman's Day and Field and Stream.
His work in advertising included paintings for White Horse Scotch Whisky, the Pennsylvania Railroad and the Chrysler Corporation.
He also made easel paintings of cowboy life and portrayed the history of the American West.
In 1988, he was awarded the Rungius Medal from the National Museum of Wildlife Art for his painting Late Arrivals, Green River Rendezvous.
[3] His work is on permanent exhibit at the Clymer Museum of Art, located at 416 North Pearl Street in Ellensburg, Washington.