Dom - is the photograph complete as shown, or is there more, as I would like to download it, with yoour permission, for my ATL collection. Meanwhile, I'll contact Jonathan Kinghorn for him to identify the ship. Signalman.
Could be either of the post-war Minnes. There were minor differences between them (Minnetonka had a slightly greater tonnage) but I don't know of any external visual clues that enable one to distinguish between them.