[Icare9]

Name: CAMERON, DAVID PEACOCK ROBERTSON
Initials: D P R
Nationality: United Kingdom
Rank: Flying Officer (W.Op./Air Gnr.)
Regiment/Service: Royal Air Force Volunteer Reserve
Date of Death: 20/05/1945
Service No: 186773
Casualty Type: Commonwealth War Dead
Grave/Memorial Reference: Sec. E. Grave 856.
Cemetery: EDINBURGH (MORNINGSIDE) CEMETERY

Name: MAWBY, CECIL GEORGE WALTER
Initials: C G W
Nationality: United Kingdom
Rank: Sergeant (Air Gnr.)
Regiment/Service: Royal Air Force Volunteer Reserve
Age: 20
Date of Death: 20/05/1945
Service No: 1894889
Additional information: Son of Leonard Basil and Elsie Florence Mawby, of Ealing.
Casualty Type: Commonwealth War Dead
Grave/Memorial Reference: Sec. Q.Q. Row D. Grave 13.
Cemetery: SOUTH EALING CEMETERY

Name: RICKARD, RONALD ARTHUR
Initials: R A
Nationality: United Kingdom
Rank: Flying Officer (Pilot)
Regiment/Service: Royal Air Force Volunteer Reserve
Age: 28
Date of Death: 20/05/1945
Service No: 187301
Additional information: Son of Arthur Percy and Annie Lillian Rickard, of Manchester; husband of Marjorie Iris Rickard, of Blackley, Manchester.
Casualty Type: Commonwealth War Dead
Grave/Memorial Reference: Panel 20.
Cemetery: MANCHESTER CREMATORIUM

... would seem to be other casualties that day, perhaps also part of the crew?
You say you know the circumstances of the crash so presumably others survived (No Australian, Canadian or NZ deaths seem to fit).

Is he the Flying Officer D Cameron, DFM, of 635 Squadron, one of S/L Bazalgatte's crew when he gained a posthumous VC 4th August 1844? If so, he was also part (when a Sgt and awarded the DFM for his actions) of another VC pilots crew, F/Sgt R H Middleton in November 1942. Do you have any confirmation of any of this? Age? if he was under training, then unlikely to be the same man. His Service Number, however does seem to be close to that of F/O Rickard who was 28 and might therefore indicate that he was a seasoned veteran.....

Especially poignant as by then the War in Europe was over.....