Moon Mullins, created by cartoonist Frank Willard (1893–1958), was a popular American comic strip which had a long run as both a daily and Sunday feature from June 19, 1923 to June 2, 1991. Syndicated by the Chicago Tribune/New York News Syndicate, the strip depicts the lives of diverse lowbrow characters who reside at the Schmaltz (later Plushbottom) boarding house. The central character, Moon (short for Moonshine), is a would-be prizefighter—perpetually strapped for cash but with a roguish appetite for vice and high living. Moon took a room in the boarding house at 1323 Wump Street in 1924 and never left, staying on for 67 years.
Moon Mullins was adapted for radio during the 1940s. In the third episode of the series (March 25, 1940), the Plushbottoms trade Moon's only suit to pay for a collect telegram and learn they are owners of a goldmine. In a CBS audition recording dated January 31, 1947, Uncle Willie asks Moon for $10 bail, and Moon teaches the game of Blackjack to Kayo. Lord Plushbottom plans to go to a costume party as an Indian but instead winds up with a suit of armor. Character actor Sheldon Leonard was in the cast.