Thanks. I couldn't find anything out about him. It's a pretty common name and as usual loads of Americans came up first. Even amending the search to George Shields + Montrose wasn't fruitful, as many references to him taking the Montrose job sere there but none wit his age or background.
There were a couple of links to Facebook and Linkedin but as I wouldn't trust the former with personal data as far as I could throw it and, despite being a founder member of the latter, chucked it the moment it started charging, there was nothing I could find.
Still, now I wonder who ever thought he signed for Dundee, Arbroath & Forfar?