Hello,
are you sure your man is a pilot? I have found a Sergeant Martin John Carter who was bomb aimer who evaded capture after bailing out from Lancaster LM180 which crashed at Bavegem, Sint-Lievens-Houtem in East Flanders.
More information:
http://www.aircrewremembered.com/lawrie-john.html
https://luchtvaartgeschiedenis.be/co...ter-te-bavegem
Kind regards,
Timon