Yes it is so sad that so many have passed on. I personally knew 2 veterans fairly well. The first was Jack. He was a naval aviator and flight engineer. He flew PBY3s during the war searching for submarines. He told us a number of stories about his time in the navy. He was injured with a broken back when he and a fairly new pilot were doing touch and goes just off shore to get the new guy used to landing the plane. They came in for one more pass and hit a log. The plane took a huge hit and Jack's seat belt popped apart and he ended up under and it front of the instrument panel. The plane started taking on water. Luckily they were close to shore and the new pilot red lined the engines and managed to beach the plane. Jack spent about 6 months in recovery. According to him he flew at least one of every type of plane the navy had during the war at one point or another.
The second WWII Veteran I knew was Ted. He was a corpsman on Iwo. His first step onto the island was apparently onto the body of a dead marine. He wasn't there long and while helping a couple of wounded marines back to base a mortar exploded close by. He was seriously injured but was still able to get the injured marines back to base. He started to go back out to help some more, but they sent him back to the US as he was injured bad enough that he couldn't be in the fight anymore. Ted was always very soft spoken and almost never spoke about his experiences.
I am sure I knew others, but many never spoke about their service, or I was too young to even pay attention.