Mark,
Mannocks body was found some distance from the wreckage of his plane, whether he jumped, or was thrown out in the crash, no-one knows.
His body was stripped of all personal possessions by the Germans, these were returned later to his family via the Red Cross. They (Red Cross) also stated that his body was buried "at a point 300 meters North-West of La Pierre au Buerre on the road to Pacaut". However, extensive searches by the War Graves Commission after the war, revealed no such grave site. Especially as there was no road leading NW to Pacaut....There was however, a road leading NE to Pacaut, and some 20 years later, a body of an unidentified British flying officer was found at a site roughly 300 meters from the original crash site. It had been stripped of all possessions and was subsequently buried in Laventie Mititary Cemetary, in Grave 12, Row F, Plot C.
This information was taken from James Dudgeons book '"Mick" The Story of Major
Edward Mannock VC'
Regards
Paul