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 inspiration for Harvey Kurtzman's "Mad Magazine", which began in 1952 as a comic book that specifically parodied other comics in the same distinctive style and subversive manner. Capp also lampooned popular recording idols of the day, such as Elvis Presley ("Hawg McCall," 1957), Liberace ("Loverboynik," 1956), the Beatles ("the Beasties," 1964)—and in 1944, Frank Sinatra. "Sinatra was the first great public figure I ever wrote about," Capp once said. "I called him 'Hal Fascinatra.' I remember my news syndicate was so worried about what his reaction might be, and we were all surprised when he telephoned and told me how