Hello Bruce Michael Baillie,
The parody I'm 99.99% certain was written by Mick Sheehan from Darlington.(
I remember Brian an extremely nice and gentle guy from Richmond ( N.Yorkshire )who played guitar and sang.Always had time for everyone.
At the time I was talking to him, we were doing a Folk gig at Catterick Camp about 30 Years ago ? he was telling me about problems with his diaphragm ,problems which I believe contributed to his demise. I couldn't have known how serious they were ,we didn't think like that.
As to the parody writer Mick, difficult to get him to sing songs like that anymore,he'll likely tell you he's forgotten it, so you may have to look around and see if anyone has a hookey recording , most likely with someone who was associated with the group Garde Loo who were residents at the Golden Cock in Darlington.
The Parody is truly hilarious, I never learned it because I thought I would never be able to deliver in Mick immaculate dead-pan tones and manner.
Mick has lived at Richmond for many years now and just made a C.D., containing many self-penned songs dealing with social & work issues and history. Well worth a listen.
Darlington Arts Centre may also be a good starting point in your quest.
Best Of Luck .