My father was one of the first 500 to jump at Ringway airport for the formation of the parachute regiment, he went to 3 para and eventually Arnhem.
He was one of the many undiagnosed PTSD casualty's and I finally got to meet him when I was 29, he died a few weeks later from the effects of throat cancer.
I will add that he was a pre war soldier with the East Lancs and made it, (according to my old brother) out of Dunkirk in a coal barge.