Robert Rodriquez wanted me to find a recording of Belle Starr by Irene Salatan. What I found was a performance by the Kossoy Sisters at the 1971 Fox Hollow Folk Festival - Irene Kossoy Salatan and her sister Ellen Kossoy Christenson, with Tony Saletan singing bass:https://www.youtube.com/watch?v=XXvJjoYPGM8