Ron-
Grayson and Whitter are probably the original source, as far as recordings are concerned. They sang and played music that was current in Kentucky in the late 1920s. Their music is available on CD (I have it on Document and County CDs). I also have a Folktrax recording of Frank Warner singing it.
      I can also supply Frank Profitt's version (on several CDs), the Folksay Trio's version and, in a pinch, I can find a copy of the Kingston Trio doing it.
      Ain't CDs wonderful!