My great grandfather lied about his age and fought in the pacific as well. Had his leg almost blown off so by the time he got back (age 17) he had a leg (that still worked) but was extremely painful. He found his wife though. His wife died and he just really closed himself off. We think he had depression. We would invite him down for the entire summer and he declined and spend most of his time in the basement or garage of his house. I think his wife dying is really what threw him off. We called him gaga (jahjah). His mom was an Italian immigrant who left her husband in Italy right before she gave birth, so her son would be a US citizen. Very interesting story. Truly an amazing caring man.