The Lomax recording referred to above is almost certainly that by Estil Ball and his wife Orna from Rugby Virginia, first recorded I believe in 1938 after Lomax had met them at the Galax festival and again in 1959/60 when he re-visited many of his previous sources.

The later recordings are available on the "Southern Journey" 5 cd box set and the original vinyl albums on Atlantic. Plus there are two wonderful cd's by this couple and other members of Orna's family on the Rounder label. Great listening and source for some wonderful songs and guitar picking too.