Hi Andy
Imagine you were the Bomber Command Memorial (BCM) people facing the task you speak about, contacting all these people.. ohh I dunno say the way the New Zealand Gov have ALREADY contacted their people...
and you're sat there in your office and some one phones up and tells you they can give you a TOTALLY up to date list of every member of their squadron as of that day - a list that will not only give them current addresses, but phone numbers as well... just imagine for a second..
Would you being the BCM say to this person on the phone:
A) We are not contacting any one at this moment, invitations to the opening will be sent ONLY to the veterans of bomber command, GoodBye!
B) Wow what a generous offer, how kind and yes that would help us no end... what's your name again.
I know what I would have said ... and I know what BCM did say, because it was me that phoned them up and me that got one of the coldest shoulders I have ever had in my life.
I have great respect for what the BCM folks have done and are doing, BUT I have GRAVE GRAVE reservations as to who is going to be at this thing and who isn't and it has bugger all to do with them being healthy or even alive... most of them don't know a thing about it because our Gov is keeping it that way!!!
Just my opinion I might add..

Steps off soap box.........