"Willie Mae "Big Mama" Thornton is best-known for two songs covered by white rock 'n' roll stars (Elvis Presley, "Hound Dog"; Janis Joplin, "Ball 'n' Chain") but she is unquestionably one of the great blueswomen of her generation. She embodies some of the clichés of the blues, too: Born in the South, raised in the church, appropriated by white performers, hard drinking, relatively early death, big nickname, buried in an indigent's grave. Lynnée...