Thank you for a very interesting post Giles.
I probably have to thank Admiral Ramsay, and a completely unknown truck driver together with a few others, for my very existence.
My father, a keen motorcyclist, was a despatch rider up to and during the retreat. He had been without sleep for several days and never knew if he had simply crashed, perhaps even avoiding a straffing, or had collapsed from sheer exhaustion. The driver of the last truck of the last convoy along a section of road stopped and sent some men into the paddock where he and his motorcycle had gone off the road to see if he was still alive. All the others had passed thinking he was dead. They picked him up and got him on a boat. He regained conciousness to find himself mid Channel.
He did not return to France for the invasion but finished up in South East Asia with the Engineers on the Burma end of the Burma Road into China.