Now that is not quite true, Uncle Dave was playing long before that.

but it is always encouraging to not let what you don’t know embarrass what you do

Uncle Dave–aka the Dixie Dewdrop

R Crumb drawing of Uncle Dave Macon

Uncle Dave and his son Dorris, 1953

http://www.johnhartford.org/images/Old%20Photos%20of%20Grand%20Ole%20Opry/HTML%20Pages/Photo%2026%20Uncle%20Dave%20Macon.htm