Can anyone help me please with the loss of a Blenheim of 11 Squadron in North Africa on 11 December 1941.

I would like to know from which airfield they had taken off and where (ish) the aircraft was lost.

The crew are named on the Alamein Memorial.
Squadron Leader Charles Francis Derbishire (37161)
Flight Sgt Leslie Joseph Macey (749446)
Sgt James Charles Bryden Webster (938305)

Cheers
Ken