"Birmingham Sunday" is a song written by Richard Fariña and performed by both Fariña and his sister-in-law Joan Baez. The subject matter is the bombing of the 16th Street Baptist Church in 1963 by members of the Ku Klux Klan that killed four girls and injured 22 others. The melody of the song comes from a traditional English ballad named "I loved a lass".
Baez's version was released on her 1964 album Joan Baez/5, and was used as the theme song of the 1997 Spike Lee documentary about the bombing, 4 Little Girls.
References
Birmingham Sunday Wikipedia(Text) CC BY-SA