Hello,
It's me again! I've been doing more family research and I think I've managed to figure out the reason for the two different POW numbers!
It turns out that my Great Grandfather had an uncle that was a year younger than him and had the exact same name, and I expect they were captured together.
My great Grandfather was born 30 August 1881 - his family search ID is GCY6-NL4 - Presumably his Prisoner number: 23390
His Uncle was born on 21 August 1882 - his family search ID is P4CZ-H4H - Presumably his Prisoner number: 23389
I think I've also found out who the man in his forties was born 5 April 1857, his family search ID is GC76-H8X - Presumably his Prisoner number: 23388
I think I'm on the right track and need to do some more digging, starting to wonder if I've got the right persons Vorm B though, is there anyway to tell at all?
Regards
André