<P> Keep on the Sunny Side is a popular American song originally written in 1899 by Ada Blenkhorn (1858--1927) with music by J. Howard Entwisle (1866--1903). The song was popularized in a 1928 recording by the Carter Family . A recording of the song with The Whites was featured in the 2000 movie O Brother, Where Art Thou? . </P> <P> A variant, "Stay on the Sunny Side", is sometimes sung as a campfire song . It features only the chorus, with some altered lyrics ("You'll feel no pain as we drive you insane"), with knock - knock jokes being told between choruses . </P>

Who wrote keep on the sunny side of life