PONDERS END 1940 Me110 M8+BM

PLEASE can anyone help. I believe i have a pocket knife/pen knife that is in a special form, that came from one of the 2 crew members. Hptman Heinz WAGNER and Stabsfw ? Schmidt. One of the 2 crew members was catapulted out of the crashed plane at Enfield Sewage works AUG 30Th 1940 4.55 pm.THIS IS THE MAN I WOULD LIKE TO FIND DETAILS ON. I am thinking it would be a good jesture to find his remaing family.
I think this plane was shot down by possible Hurricane action after they completed their mission of a raid to LUTON Vauxhall works. I believe it is the man, as the other would have still been in a burning plane making any looting impossible. The other site at Durrants lane, A2+HK , the plane exploded on impact. Nothing to loot ! The men that got to the site ? say they found cigs (which they were smoking) and the knife.(This they gave to my Mother.) Also a soldier is reported as taking off his boots in a panic before the Police and RAF Crews got to the site.