Sonny Boy Williamson
From Zappa Wiki Jawaka
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He is also mentioned in "The Real Frank Zappa Book" (1989): "Don was also an R&B fiend, so I'd bring my 45s over and we'd listen for hours on end to obscure hits by the Howlin' Wolf, Muddy Waters, Sonny Boy Williamson, Guitar Slim, Johnny "Guitar" Watson, Clarence "Gatemouth" Brown, Don & Dewey, the Spaniels, the Nutmegs, the Paragons, the Orchids, the etc., etc., etc."
