RunrigFan, you linked to the Dubliners version, but Phil Coulter actually sings 'walked the dog'.

Lovely, and very moving, to actually see and hear Phil sing this wonderful song. He says: "Of all the songs I have written, this is the one I would like to be remembered for. It's my story...'

The Town I Loved So Well- written and sung by Phil Coulter

(Thanks, kat, for bringing this song up. What brought it to your attention, if you don't mind me asking?)