Theo
http://forum.12oclockhigh.net/showthread.php?t=47645
The two crew died, presumably you already have these details, but might help others find more for you.
ANDERSON, LIONEL DAVID. Flight Sergeant (Pilot). Service Number 1388016. Died 27/04/1944. Aged 22
515 Sqdn. Royal Air Force Volunteer Reserve
Son of Joseph and Deborah Anderson, of Neasden, Middlesex.
Buried at ARNHEM (MOSCOWA) GENERAL CEMETERY Grave 22.
SIMS, ANTHONY BERT HAYWARD. Sergeant (Navigator). Service Number 1397228. Died 27/04/1944
515 Sqdn. Royal Air Force Volunteer Reserve
Buried at ARNHEM (MOSCOWA) GENERAL CEMETERY Grave 21.