Gibson on Chuck, T-Bone, B. B., and Sister Rosetta
The T-Bone Walker clip I posted below is also part of the post from Gibson Guitars, which talks about the guitars used by T-Bone, Chuck, B. B. and others. It includes a clip of Sister Rosetta Tharpe. I've read, but haven't seen, that Sister Tharpe did something like the duck walk. She sure as hell is worth listening to during the guitar solo-- and Chuck Berry says in his autobiography that he did just that.