This edition brings together representative transcriptions of folk songs and ballads in the British-Irish-American oral tradition that have enjoyed widespread familiarity throughout twentieth-century America. Within are the one hundred folk songs that most frequently occurred in a methodical survey of Roud’s Folk Song Index, catalogues of commercial early country (or "hillbilly") recordings, and relevant archival collections. The editors selected sources for transcriptions in a broad range of singing styles and representing many regions of the United States. The selections attempt to avoid the biases of previous collections and provide a fresh group of examples, many heretofore unseen in print. The sources for the transcriptions are recordings of traditional musicians from the 1920s through the early 1940s drawn from (1) commercial recordings of "hillbilly" musicians, and (2) field recordings in the collection of the Library of Congress’s Archive of American Folk Song, now part of the Archive of Folk Culture. Each transcription is accompanied by a brief contextualizing essay discussing the song’s history and influence, recording and performance information (whenever available), and an examination of the tune. The edition begins with a substantive essay about the history of folk song recordings and folk song scholarship, and the nature of traditional vocal music in the United States.