The following websites may be of interest:
514 Squadron Facebook page.
Tribute site for Sgt. Ernest 'Sunny' Gledhill
Wikipedia page on 514 Sqn. RAF page on 514 Sqn.The Wartime Memories Project, 514 Sqn.
RAF Waterbeach History
Waterbeach Military Heritage Museum Wikipedia page on RAF Waterbeach
Bomber Command History
Bomber Command History Forum
Bomber Command Facebook Group
Lost Aircraft - Loss Records of aircraft in WW2
Royal Air Force Bomber Command 1939-1945 - Excellent introduction to Bomber Command's war.