Sgts Warren and Harry were both at 3SFTS RAF South Cerney, the third almost certainly was as well. So young, still in training, and right at the start of the war. The waste of it all...
Here is Edward Charles Warren's CWGC entry:-
Casualty Details
Here is a list of all 25 military graves at All Hallows churchyard, South Cerney:-
http://places.wishful-thinking.org.u...erney/MIs.html
Those dated 24th March 1969 relate to the tragic loss of Hercules CMk1 XV180 at RAF Fairford (also while training).