Four RAF Mediterranean losses - info needed please

[wwrsimon]

Hello everyone

Can anyone give any details about the aircraft involved in the following four losses in the Med?

FENDER Edwin Stuart, Flight Sgt 939536, 272 Sqn, killed 23/12/41
GREAVES Arthur Seymour, Sgt 581440, 272 Sqn, killed 23/12/41
They were Navigators in two Beaufighters shot down by a Bf-109 flown by Oblt Gerhart Homuth near El Aghelia.
Pilots were P/O J H Baker and P/O N K Lee respectively.

DEWHURST Lawrence, Flying Officer 66012, 39 Sqn, killed 24/08/42
Pilot of a Beaufort, shot down while attacking the Italian tanker 'Giorgia' off the Greek coast.

GALLEY Denis, Sgt 1098272, 227 Sqn, killed 16/05/45
Navigator in a Beaufighter, piloted by Sgt E J Havnar from Rhodesia, FTR. Havnar became a PoW.

The information I have gleaned so far is from Nesbit's 'The Armed Rovers' but the book does not include any specific aircraft details.

Many thanks.

Regards

Simon