I used to play in the house band at Ipswich Folk Club, back in the mid 60's to early 70's. Bob Davenport was a regular there later on, just dropping in, as he had moved to the area. Percy Webb was also a regular and we used to travel with both of them to pubs in the countryside around Ipswich, on a regular basis, at the weekend.
I would hate to suggest that that is where Bob got the song as, with such a wide repertoire and travelling experience, he could well have heard it from numerous other people beforehand. Having said that, I don't ever remember him using the song in his act before this period and, of course, he would never sing it when Percy was present. We used travel up to the King's Head, Islington, on occasion too and I am pretty sure that is where I heard Bob sing it for the first time.
The version I have is by Percy Webb on Topic 12TS243.
Someone mentioned Trevor Sheridan as well. He had also moved to the area (it was a great area to be living, in those days). I have two photographs of a gig that our band did showing Trevor sitting in on banjo, as he quite often did. I think it was at a Jesse Fuller concert.