 The song was completed, along with other tunes, on Swan's Island, Maine, where Paul Roberts visited and performed with his soon to become wife, Annie Marrithew, during World War II.The song enjoyed its greatest popularity during the war years.The "somewhere" in the title of the song refers to an idealistic version of heaven reserved for the brave U.S. soldiers fighting the Axis Powers, somewhat akin to the concept of Valhalla.