At Birtley folk club in the mid 60s, after you'd paid 3d admission, there were always copies of Tommy Armstrong's 'collected works' for 6d (old pence for youngsters!)- in it the recommended tune was 'Go and Leave me if you wish it/to'- I'd never heard of this tune at the time, and assumed it was the one used by Louis Killen. Later I heard that A L Lloyd had taken a Balkan tune and applied it to Tommy Armstrong's words- this sounded quite likely to me- it certainly doesn't sound very English- Armstrong had a taste for more basic Irish/Scots tunes. I heard Bob Davenport sing it to a march tempo tune, and indeed recorded it to that tune on a private LP 'Trimdon' in 1976.
Later again, I heard the Keane sisters sing 'Go and leave me..' and it all clicked into place, so I recorded it again on a CD a few years ago- all this came to mind when looking for info after the sad news of Lou Killen's demise a couple of days ago.