Hi Sam
and welcome
i'm sorry you've not had any response, my father was at Dunkirk, he was a DR, i still remember the stories he told me about being there
my favourite one was while he was walking down the beach trying to work out what was going on, a voice shouted 'oi arthur what the hell ( well i think it was hell) are you doing here?' he had bumped into his cousin from london who was sat in a shell hole...
i hope you have a great trip
cheers
chris