Bo Carter (aka Armenter 'Bo' Chatmon) would sometimes play clarinet with the Mississippi Sheiks (when he wasn't playing other instruments), although I couldn't say whether he was recorded doing so (Stewie probably knows?)

Also, Johnny Dodds played with some blues artists (as loosely distinguished from jazz artists), I'm now trying to remember who without CDs to hand to check, but I think I have recordings of Dodds playing with someone from Georgia, possibly Curley Weaver. Needless to say, Dodds is worth listening to anyway and sheet music might be available for some of his stuff.

Brian