This video has apparently been on the Internet for a few years, but this is the first time I'm discovering it... A stirring performance of "Will You Miss Me When I'm Gone" performed by Janette and Joe Carter at the Carter Family Fold, filmed by Alan Lomax!
Janette and Joe, of course, appear as children in our graphic novel, "Carter Family: Don't Forget This Song."
There are a lot more wonderful field recordings and films available in the Alan Lomax archive on YouTube... https://www.youtube.com/user/AlanLomaxArchive/videos