Carthy, Waterson and Parkinson play the Luke Thomasson (Benny's father) melody as an intro to the song you linked, Helen, but don't use it for the song that follows. The words for the Thomasson MotW I linked above, sung by the late Kate Wolf were written by John Croizat, probably long after Luke wrote the melody. But don't fret, I'm sending you a splint for your dislocated google finger via next day air and I'll try to make time in my schedule to tutor you on the intricacies of www search engines. (insert smiley face)

Respectfully, (g)illymor