Slim Jim, I wasn't, as I said, intending to be rude, I just wanted you to be specific enough in your question that someone could give you an answer that means something--

For my two cents, I remember once having a Chess album of Little Walter and MW that had the keys listed on the back--I don't have it now, but the info is out there--

Also, Elderly Instruments used to have a series of Blues songbooks for various Chicago Artists--they were from a very small publisher, and not much more than the melody lines, chords and lyrics, but they were all in the original keys--