Hi,
As nobody has responded yet, can I just comment on the photo ?
Nearly all seem to be wearing the same cap badge, which appears to be a thin upright one which I don't recognise. Only one officer but I can't make out his cap badge at all. Many, but not all, of the group are wearing dark coloured flashes on their shoulder tags. This might denote an officer cadet but is not something I have seen before. Then there is the corporal in the dark uniform and his hat (?) at an unusually rakish angle on the far left of the group - is he perhaps from Allied forces, Free French or similar?
I know I'm not being particularly helpful here but might perhaps provoke a few responses to help solve the problem.
Maec