Al Capp veterans returning from the war. Capp was also involved with the Sister Kenny Foundation, which pioneered new treatments for polio in the 1940s. Serving in his capacity as honorary chairman, Capp made public appearances on its behalf for years, contributed free artwork for its annual fund-raising appeals, and entertained crippled and paraplegic children in children's hospitals with inspirational pep talks, humorous stories and sketches. In 1940, an RKO movie adaptation starred Granville Owen (later known as Jeff York) as Li'l Abner, with Buster Keaton taking the role of Lonesome Polecat, and featuring a title song with lyrics by Milton Berle.
Al Capp the Montgomery Story", a biographical comic book distributed by the Fellowship of Reconciliation. Capp had often parodied corporate greed—pork tycoon J. Roaringham Fatback had figured prominently in wiping out the Shmoos. But in 1952, when General Motors president Charles E. Wilson, nominated for a cabinet post, told Congress "... what was good for the country was good for General Motors and vice versa," he inspired one of Capp's greatest satires—the introduction of General Bullmoose, the robust, ruthless, and ageless business tycoon. The blustering Bullmoose, who seemed to own and control nearly everything, justified his far-reaching and mercenary excesses by saying