Thanks for a site I wasn't aware of. I guess I was luckier and unfortunately he's there (or I am pretty sure he's the one). The only good thing is he lived to see the end of the war but what a shame! (By the way is Bastian a different name to Sebastian?):
Name: MAITLAND-THOMPSON, BASTIAN
Initials: B
Nationality: United Kingdom
Rank: Wing Commander
Regiment/Service: Royal Air Force Volunteer Reserve
Unit Text: 219 Sqdn.
Age: 29
Date of Death: 28/07/1945
Service No: 83250
Additional information: Son of Howard and Mildred Maidand-Thompson; husband of Jean Maidand-Thompson, of South Croydon, Surrey.
Casualty Type: Commonwealth War Dead
Grave/Memorial Reference: Grave 190A.
Cemetery: ENSCHEDE EASTERN GENERAL CEMETERY