I thought I heard it said as “55,000 casualties”. Casualties usually means persons killed and injured not solely those who died???

Roger Smith.

The Air Ministry supplied to the authors of “The Strategic Air Offensive Against Germany” figures of all RAF,WAAF,Dominion and Allied personnel serving with Bomber Command between 3 September 1939 and May 1945 47,120 aircrew killed and presumed dead, 8090 killed on Non-operational not to mention 530 ground staff killed. My source Denis Richards “The Hardest Victory”.