It is highly unlikely you'll get any information on this. I've just been rereading my dad's memoir and things at Dunkirk were absolutely chaotic. I'm including below a short extract from his memoir, which starts on location in Cardiff, after the troops had arrived by train direct from Folkestone.
"We were at Cardiff .... to be sorted out and sent to our own regiments. I was lucky, as most of our boys had stuck together. We did not have any kit so had to wait until the full regalia of a soldier’s kit was available, so we remained rather scruffy and unkempt.
An officer came round the huts, taking our names and checking identity discs and, of course, our requirements; it was not impossible for an infiltrator to have taken the opportunity to come over with us from Dunkirk. Right now, all different regiments were mixed together, just as we had been on the ships and the train"
If you want to learn more about his memoir, go to
www.grimdetermination.co.uk where you can read the first chapter of his memoir, located at Dunkirk. I'm hoping to get the book published next year so, unfortunately, you can't read the whole book but there is plenty of stuff on the site which is still of interest, including lots of photographs.
Kind regards,
Paul