Would have to agree with Gargoyle above,that there is much crapola on these mudcat threads and a few informative and interesting ones. That is why I also only remain a guest.

Some of the above reccomendations are not bluesmen (or women) but people who play and try and sing the blues. Sadly the real live Bluesman is almost a thing of the past.
I would suggest that you try some of the cheap compilations which are around particularly on the JSP label (an English label it's true but then it was us that taught you guys across the pond to appreciate the treasure that you once had there) JSP do 4/5 cd box sets at a very good price and if you don't like what you get you won't have thrown away a lot of money. There is a mail order company over here called Red Lick Records, it's on the web and their stock and service is excellent. That's the place to go for all things BLUES.
Don't be suckered into buying from the opportunistic pretenders pushing their own discs, listen to the real thing first. I guess
Robert Johnsosn was a good intro.
I hope you enjoy the voyage of discovery as much as I did.

Hoot