Hey Jim,
Try a google search and you'll probably come up with a lot of stuff on him. I worked my way through the chord section of his book and still use a lot of those chords and progressions. I did own an album of his that was released on Kicking Mule back in the 70's which contained mostly country blues and featured him playing solo acoustic guitar. Forgot the name of it but it may have been rereleased on the Shanachie label.vl