; ; ; ; ; ;
Sonny Boy Williamson (blues harp, voc), Hubert Sumlin (g), Willie Dixon (b), Clifton James (dr), Sunnyland Slim (voc, p), Sam "Lightnin'" Hopkins (voc, g), Sleepy John Estes (voc, g), Hammie Nixon (blues harp), John Henry Barbee (voc, g), Sugar Pie Desanto (voc), Howlin' Wolf (g, voc)