Barbara Allen/Barbry Ellen/Tecumseh Valley

I was listening to Meg Baird Sing "Barbry Ellen" (about 3½ minutes into the link below) when I was struck by the similarity of her version with Townes Van Zandt's "Tecumseh Valley". Her treatment of "Sweet William on his death bed lay
For love of Barbara Allen.
reminds me of Tecumseh Valley's
"The name she gave was Caroline
Daughter of a miner"
I'll pester one of the music instructors when school is back in session to see if I'm close.