F/O Peter Clark, 152806, 418 Sqn, KIA 18 Jul 1944

I am writing an article for the local historical society yearbook in Malmo, Sweden about the 10 allied airmen buried in Malmo. For that purpose I am trying to find background information about each of these men, to put faces to their names, so to speak. In the case of one of these men however, I have so far not been able to find anything at all. If I could only find out his date of birth, place of birth and/or names of next-of-kin I would at least have a place to start, but none of these facts seem available. Can anyone here help?

The man in question is F/O Peter Clark, 152806, 418 Sqn, navigator to S/Ldr J.B.Kerr, killed on 18 Jul 1944 and buried in Malmo.
I have checked the CWGC website, read the ORBs for 418 Sqn mentioning Clark, written to RAF Disclosures section, tried the 418 Sqn association, tried various internet forums on the subject, checked the London gazette,but can´t even find out his age. I have found a picture of him, with some other crew in flying gear but that is it.
Can you help???