Welch fusiliers, casualty buried at Arromanches, what could have caused his death?

TomOBrien, you ask about mortar crew: for this particular search I was working with someone else's notes [a trusted researcher who had to give up work because of injury], and I was led to believe they contained personal testimony. I've since made contact with a living member of the family, now I have the correct name. I should be able to provide extra details in due course. Harry