Yah, he ripped off Doc Watson’s signature tune without a quaver.

I know "Shady Grove." I don't believe it's ripoff; they are different songs in the same tradition that share lyrics because that's a common feature of folksongs, for one image to start in one song and then become incorporated into another. The needle-and-thread verse is in Jean Ritchie's family version of "Jubilee," from which Fussell adapted his. Ritchie herself knew and sang "Shady Grove."