HighTow, Chevron has made a good point with local papers. Would also suggest some of the local social media sites if you have one for the area. Parish/Council records might be a good place as quite often the newly formed units paraded in local schools. The other point to remember is that originally a number of Flights as opposed to squadrons were formed in the local area also at local schools. For instance although Ely had its own squadron there was a flight in the Kings School in Ely and another in a nearby village. I think they were all numbered in the 600 series. PM me if you need any more help, just trying to piece together the wartime history of Ely sqn, helped a bit by the arrival of the Civilian Committee Minute book a few weeks ago from 1941- 46.