I'm not sure of the POW status.... I was agreeing with your statement about the Purple Heart.
It appears that he was what we would call a high pointer.... the military had a point system that factored in medal, time, marital status and even number of children. Because his early enlistment it is very possible that he was there during most of the battles with the exception possible exception of the period in which he was wounded.
He was a real soldier and that is without question.