Graham Douglas, Alex McKenzie, and Tommy 'Paddy' Sleith. No.9 Commando.

[Photo courtesy of Alex Mckenzie's son and namesake Alex].

Alex adds "From the left - Graham Douglas(Dougie)to my Dad but my Mum thinks he was called "Prof" or "the Prof" in the Commandos, Dad's in the middle, we don't know who the other man is."
Posted by Pete R.

Update 1/7/12 from Karen Sleith " My Granda Tommy Sleith (paddy) is the Commando on the right."