Hi Victoria
He doesn't appear on any POW list, nor did any communication of being Missing end up in the The Times or the Flight Magazine. So if he was reported missing/POW it was for a very short time.
Could you list some of the units he was with, trade, rank etc. If you do not wish to do so on the boards then PM them to me.
If we can get a timescale when he was possibly torpedoed, then I know someone who could help as he has done a lot of research on ships carrying POWs in the Med that were lost.
Howevr, I should point out that Vichy prisoners are rather harder to track down as they weren't reported to the Red Cross as efficiently as by the Germans etc.
K