What kind of singers were Grandpa Jones and Cousin Emmy?
Cousin Emmy: Cynthia May Carver (March 14, 1903 – April 11, 1980), known professionally as Cousin Emmy, was a banjo player and country singer who was one of the pioneering solo female stars in the country music industry. Grandpa Jones:  He is a member of the Country Music Hall of Fame.
i don't know