My condolences to you and your family, sir.
My father-in-law just celebrated his 92nd birthday a couple months back. He's a WWII vet... he's one of only 3-4 vets still around from his old unit. His father lived to be 100... I pray that we get to enjoy 8 more years with him. He's still fairly healthy, plows his driveway every winter (although he's hinting that maybe this winter he'll hire someone to do it). He's still sharp as a tack, and he still gets around pretty well, although his knee is starting to give him some trouble. He hasn't played golf now in well over a decade, however.
About 20 years ago I was playing a round of golf with him, and I hit a horrible tee shot on a par3 and the frustration got the best of me. I whirled the club about 30 yards ahead of the tee box in a quick fit of rage.
He just calmly and casually looked at me and said, "Son, two things you need to know. One - you're not good enough to get that angry, and two - you'll never do that while playing with me again. Am I clear?"
I responded, "Yes, sir."
He's someone I greatly admire, and although I think we use the term "Great American" far too often, he is in every since of the word a "Great American."
Just like your pops was, I'm sure. We are forever indebted to our veterans.