Steve Cox - a word of warning concerning Lost Bombers. That website is sometimes very, very wrong - the man who built it essentially plagiarised clear out of WR Chorley's Bomber Command Losses - and there are many transcription and other errors that have come across to the website as a result.
As I understand it the owner of Lost Bombers passed away some years ago and the site is no longer updated. Perhaps useful for initial research, but make sure you check anything that you pull off it in other, more reputable sources.
Adam