Thanks, Wensleydale. Interesting.
Albeit viewed through the fog of decades, ISTR he also said he was an Arty. Liaison Officer to Gen. Crerar, so not necessarily deployed initially with 68 LAA Regt for CHARNWOOD. His few papers do, however, include a press cutting [presumably of personal significance] with Bofors L40/70 being used in the ground role. As he told me, that where where his ears got done in whilst trying to get someone out of the line of fire as the gun traversed to engage e/a and went 'bang'.
Anyway, who else cares [or knows]? He was just one of tens of thousands, and at least from my POV he came home. So many didn't.
Enough of my 6p.