Doughboy was a popular nickname for the American infantryman during World War I. Though the origins of the term are not certain, the nickname was still in use as of the early 1940s. Examples include the 1942 song "Johnny Doughboy Found a Rose in Ireland", recorded by Dennis Day, Kenny Baker, and Kay Kyser, among others, the 1942 musical film Johnny Doughboy, and the character "Johnny Doughboy" in Military Comics. It was gradually replaced during World War II by "G.I."
