You might enjoy the singing of Hally Wood from Texas. I don't know if Texas Gladden was mentioned. A must hear!Since Jeannie Robertson was mentioned, then it would be good to hear Margaret Barry, (The Irish Tinker Lady).
Jean is a one-of-a-kind though. She's a remarkable person. A folk song scholar as well as representative of a Cumberland Mountain folk tradition. She's also a great songwriter. The L and N Don't Stop Here Anymore, Black Waters, and many others.
Frank