The listing is for Sergeant being promoted to Pilot Officer and there are no initials. I'm presuming that it's him but a search of the records should confirm. I'm leaving that to his grand-daughter - I am not a relative. I searched the Strathallan magazines and found his obituary as well as what you had found.
It would be interesting to find out where he crashed. His son-in-law thinks he was flying a Wellington but is a bit hazy about that. I suspect that it was not a Lancaster because one engine lost should not have brought it down.
Thanks for your help.