I believe 776058 Sgt Pilot Geoffrey B COWEN D.F.M died in a plane crash 4/1/1942 in the Gloucester area. He won his D.F.M with 139 Sqn LG 26-9-1941. I believe 740036 W/O D.V HEWLETT also died on the same day in Gloucester area.

I am looking for Sgt Cowen unit and the circumstances of his death.