It was a common trait. My dad was also in the Navy in WWII. He was a quartermaster on a destroyer ******. Four uncles in the Army. None of them liked to talk about it. And I hear this all the time from other guys with WWII dads. To the extent when shows like "Band of Brothers" and "The Pacific" were released I was astounded on the edge of perplexed by all the short cameo narratives from the actual veterans the characters were portraying that preceded each episode. It was just so uncharacteristic. I can't imagine what the producers had to do to cajole that kind of reticence out of them. Unlike some modern veterans today, I have to say, who are only too willing to shoot their mouths off for a buck, some of them breaking protocol and NDAs on top of it.
Good on you for saving his stuff.
I hope your dad made it back. I've seen a lot of movies about WWII since I was a kid, many in B&W. I don't see the old movies around anymore. Some of them were very good. My favorite is the Great Escape. The movie was changed somewhat for the audience, but is still relatively close to the way it was. I used to know someone who had a relative that was one of escapers.
Yes, I have heard it was common for vets not to speak about their experiences. That was long before we knew about PTSD and psychological trauma too. I had an uncle who was a captain on a supply ship to/from the UK. He apparently would be sailing full steam and U-boats would be sinking escorts ships around him. Sailors would be flailing in the water screaming for help but my uncle was under orders to keep going. I only know about this because I got it 2nd hand from my mom.
Speaking about world wars, my grandfather fought the Germans on the front lines in WWII at Vimy Ridge, Ypres and The Somme. I learned nothing about his service from my mom so assume he did not talk about it. I have his whistle and siren he used in the trenches and a few medals & pins. He survived being gassed and made it back home. Watching the movie 1917 is chilling to watch.
To all those that have served to protect the western world and our way of life, one can never say thank you enough. Brings tears to my eyes thinking about what they did for us.