So I've been having a good look at this throughout the day trying to ascertain some more facts.
I agree that he is USAAF although I'm not too sure about the 8th Air Force Badge. It certainly has the star which seems to appear on most air force badges but haven't found one that really strikes me as being a perfect match.
I've been trying to find out which USAAF Groups would have served in Yorkshire before Feb 1943 but am finding it hard to find hard facts, does anyone know? or able point me in the right direction?
--EDIT--On looking again I believe that it is the Hap Arnold Air Patch which was used by personnel not assigned to an individually numbered air force, would any body agree with this?--EDIT--
I believe that this chaps name is possibly John Henry Kay and that he died at some point after September 1943, I get the impression that he died in action, although he could have died close to the war end or possibly even shortly after.
I'm unable to locate any death records or enlistment records but have little experience in dealing with American individuals.
Is anybody able to help at all, or point me in the right direction.
PS. All my searches for the name brings up a Sgt. John Henry Kay of the RCAF 428 squadron please don't get confused by this individual.