The record in Question features the John Duffy, Charlie Waller, Eddie Adcock and Ed Ferris lineup which would date it between mid-1964 to early 1969. It turns out, according to the discography in their box set that the LP was issued in 1967 and the booklet for the box set "The Early Rebel Recordings 1962-1971" says that thr Roanoake Bluegrass Festival was held in Fincastle Va in September of 1966.

No live redordings for Rebel (The LP in question and the recordings from the Mooncusser that are spread through "Yesterday & Today Vols. 1-3) were issued in the box set. I don't think that these recordings have been issued domesticly in the USA on a CD.