If the Pilot was Canadian then it is entirely possible that it was a RCAF aircraft which could mean that the RAF would not necessarily have a record of the crash.
Bonjour caz - No it would be an RAF Spitfire. Although being in an RCAF squadron, possibly even an RCAF wing, it would have been an RAF-serialled Spit, so records would be in UK (in AHB, but that would be a lot of digging). Or as posted previously, he could have been RCAF but in an RAF squadron.