Rick

As 'spaw says, not much on the web, but there's a little more. Seems he also influenced Rev. Gary Davis. There's a small amount of info on each of the following websites (sorry no time for clickies) from which you may be able to piece together a bio.

http://www.wompblues.com/scconnections.htm
http://www.bluesaccess.com/No_35/catfish.html
http://users.efortress.com/doc-rock/1960.html
http://www.northsidetavern.com/wall.html
http://www.io.com/~tbone1/blues/ECblz/gardav.html
http://www.io.com/~tbone1/blues/ECblz/pinkan.html
http://sunsite.kth.se/feastlib/mrf/yinyue/pw/ANDPIN.HTM
http://www.oafb.net/once107.html
http://www.guitarvideos.com/interviews/davis/core3.htm

Cheers!
Ian