My dad was the same, when I was older he talked about it. I guess he figured I'd understand better. People say the guys that were there didn't talk about it, he was there, you could see it just looking at him, the bullet scars and shrapnel wounds. He told me everything, regularly. Then after he'd drank too much and was "asleep", I'd hear him calling out to guys that weren't there and I knew what had happened to them.
Nice clutch of gear...neat to see the difference in the map before invasion and after. The extended second runway for the B29s...that island must have been like NYC after the battle and before the Jap capitulation.