Hi Drew,
My Uncle, 5184771 Private W.H. Parker, Glosters, was captured at Cassel during the retreat to Dunkirk, and was repatriated back to England from Stalag V111 at the end of World War II. He was also called up to Korea, whilst on the Reserve, but managed to escape to UN lines at the battle of Imjin River.
I've sent you a pm with my contact details.
Many thank for your kind offer.
Victor