Many thanks for all the input. I haven't been able to obtain a casualty list. I wondered how many air crew Nijmegan was carrying? If it's like the Shannon Connie I suppose it would be Captain, 1/O, 2 x 2nd pilots, 2 F/Es..... maybe a W/O?
I've seen mention that the 1/O Kevin Joseph O'Brien was ex RAF, but more than that I can't find.