My grandfathers didn’t talk about it — nor did my grandmother’s. My parents attribute this to a mindset of “savor the present, build the future.”
I think they were too busy absorbing the life they’d received by the grace of God, to look back.
My grandfather was an ambulance driver stationed in Argonne, France during WW-I. Unfortunately I was too young to even ask him about it. I never even found out about it until a few years ago when talking with an aunt who also told me that he graduated from pharmacy school at Ferris State in Michigan.