Not sure if this have been posted before, apologies if so.
I came across this little series a few months ago, and found them fascinating. Someone at the BBC had the foresight in the 1960's to film interviews with people who had lived through The Great War. All of them are interesting, but this one by Cecil Lewis (56 sqn SE5a, 152 Sqn Camels, amongst others) is solid gold for us Great War aviation enthusiasts.
Check out his Wiki Entry to get a bit of background on the man first, then watch the interview (its 39 minutes long, so get a brew on) Here -> Cecil Lewis
The others are well worth watching too. What really strikes me is that I am not much younger now, than when these folks were filmed, if you see what I mean! Those that I regarded as 'old people' as a child were from this very age bracket.
Unfortunately the link probably only works for UK based users, as the BBC restricts access to its Iplayer service.
Cheers
John