RAF groundcrew numbers.

[tcolvin]

Does anyone have even a ballpark figure for the number of groundcrew who served in Bomber Command during the war.
We know BC aircrew numbered 125,000, of whom roughly 57,000 were killed, 9,000 wounded and 13,000 made prisoner or went missing.
But what of the groundcrew, of whom few were killed or wounded, of course.
A million, 750 thousand?
I would have thought Harris' biographer, Henry Probert, who spent 11 years heading the Air Historical Branch, or Webster & Frankland, the official historians, would have mentioned somewhere how many men Harris commanded, but nowhere can I find it covered.
Come to think of it, there was an establishment for each squadron, which can be multiplied by the number of squadrons to get a ballpark figure. Does anyone have the squadron groundcrew establishment, please.
Tony