And/or...???
You may find chords along with the lyrics by searching for a particular song. With luck, said song will be part of a Leadbelly site with more of the same.
Go to Google (www.google.com) and type in a line of the song. If you are CERTAIN you have the correct lyrics, put your entry in quotation marks. If the song is on the web, it's a pretty sure bet Google will find it for you.