Malcolm, you're a treasure! Would you also have the year for 'Songs of a Changing World'? I must have put the wrong album title after copying the notes, or maybe I got them from someone else. Which should remind me: Always check your sources!
Tony Ireland first recorded it on 'Lest We Forget' (1989). Don't know if Wolfgang's is a new recording or the old one re-used.
The McCalmans twinned the song with 'The Colliery Gate', one of Ian McCalman's own songs, sung to a trad melody (or was it the other way round???).