(en) Edward Komara (dir.) et Andrew M. Cohen, Encyclopedia of the Blues, vol. 1 et 2, New York, Routledge, , 2e éd. (1re éd. 2004), 1440 p. (ISBN0-415-92699-8, lire en ligne [PDF]), « Watson, Johnny ‘‘Daddy Stovepipe’’ », p. 1059
« Among the oldest songsters known to play blues, Watson was also one of the first recorded. »