Hi
A rather late reply to Drew and Adam -
Ingram Murray is not so involved with Museum anymore, and I am afraid I don't know David Stirling - sorry. Ingram certainly knows his stuff about Hazebrouk and Cassel, and has a lot of knowledge.
I checked with him about Robey, and he said - Sjt Robey won the DCM at Comines in May 1940. He stayed put with his platoon when everybody else pulled out. A counter-attack by the Sappers found them hanging out. Later he was RSM of the Bucks. His portrait decorates the front of the Chronicle.
I hope that helps a bit!