There was an interesting article on the 'Beeb' news last night about a project to find photos of the faces of all the air crew involved in the dambuster raid, and they have put together quite a decent site to go with it (
http://www.bbc.co.uk/news/uk-england-lincolnshire-23586144) .
What is poignant is not just that so few of them came back from the raid but just how young they all look. Sticking faces to the numbers certainly brings it home.