I know that the McCalmans used to include it in their set ..and the version posted here certainly sounds like it was Nick Keir singing...
Ewan McVicar's book One Singer, One Song has a good potted history of the song. I can't really remember exactly what he said, and I'm not going to make it up so that I can post a load of ASB (Authoritative Sounding Bull)...Cheers
Steven