The link which GUEST# refers to leads to an article which says Clarence Ashley recorded THOTRS or Rising Sun Blues as he called it "definitively in the bluegrass style" in 1933.

I was about to blast off a furious reply, explaining that Ashley's performance style was not bluegrass, definitive or otherwise, also that he never recorded in 1933. However, a bit of digging around the Internet turned up an item on Youtube, https://www.youtube.com/watch?v=147kS8O59Qs, which shows that he did indeed record it in 1933, along with Gwen Foster, as the Carolina Tar Heels.

The question I'm now asking is why haven't I got a copy? There are various reissues of The Carolina Tar Heels, but none of the ones I've got feature Rising Sun Blues. Does anyone know whether this particular track is available anywhere on CD.

NB., before anyone mentions it, I know about Ashley's recording of this song on Smthsonian Folkways, Old Time Music at Clarence Ashley's. That, however wasn't recorded until 1961.