Doc Watson - Deep River Blues

I'm trying to learn Deep River Blues, as played by Doc Watson and others. There are lots of great videos on YouTube, including:

http://www.youtube.com/watch?v=cE2swkx9WXE&feature=related

http://www.folkways.si.edu/albumdetails.aspx?itemid=3105

Ewan Dobson is awesome

I just stumbled on YouTube videos of Ewan Dobson - fingerpicking acoustic guitar. worth a listen if you haven't heard him.