I like many of the above. Some of my favourites that have not been mentioned:

Koerner, Ray and Glover
Hop Wilson
Joe Louis Walker
Lonnie Mack
Mike Morgan and the Crawl
Hans Theesink
Jerry McCain
Tinsley Ellis
Toni Price
Sue Foley
Back Porch Blues
Rainer
Roy Book Binder
Paul Geremia
Bobby Radcliff
Robert Ward
Little Jimmy King