A distant cousin of mine in the 1st Battalion 28th Marines was KIA on Iwo Jima, he was the end of the line for that branch of the family.
Our neighbor growing up worked for an Iwo vet who had been blinded there. He started an office supply company and named it after his guide dog. He used to feel our faces when he stopped by.
My dad had a friend who survived Bataan and captivity. You would say he never recovered, drinking himself to death before he was 60.