Sounds like a helluva guy.
Can you name some of the places he served? Did he document anything?
Midway, Saipan, and Tinian... (missed Bougainville because he was selected for OCS)... and missed Tarawa because of below...They weren't allowed to keep journals or diaries... I do have a notebook that had some day to day work notes in it concerning logistics and supply... I think he normally would have destroyed that daily/weekly but it slipped through due to the end of the war...
He missed Tarawa because my mother was near death from some type of pneumonia back in San Diego (a Navy doctor found out her husband was a Marine Officer and slipped her some Penicillin [which was reserved only for US Military personnel at that point in time]...
Her near brush with death probably saved his life as he would have gone in with the later waves whose landing craft got caught on the reef... Those Marines had to wade in several hundred yards under fire... I know it bothered him a lot that he wasn't there with them... (HQ had sent him back to Pearl to get him partially in transit in the likely event of her death)...
He said Saipan was "Rough" which was all I could ever get directly from any of them in regard to actual combat... I heard more details about him from others later but never from him...
He was there at the finish on Tinian getting ready for the Invasion of Japan... They had the sand tables out and expected 60% casualties while landing (he had a friend who did the Japanese Beach Defense Survey immediately upon the occupation of Japan who told him it would have been closer to 80%...)...
He "may" have been The OD in charge of offloading the Triggering Device for the first Atomic Bomb... I say "may" because he always said he had no idea what was in those crates aside from it being a high security detail.
He was chosen for the duty because he was competent but also because he was from Indianapolis and his CO thought he might know someone aboard (the USS Indianapolis); he didn't see anyone he knew but it turned out he was among the last few hundred guys to see the Indianapolis afloat..., and probably the last Marine to board her...
He did say they knew something was up when those crates were accompanied by men in civilian clothes... They hadn't seen anyone out of uniform for years at that point... That and HQ had everyone carrying their weapons at the ready in what had previously been considered "Secure Areas" which was very unusual...
Fairly soon after the Bomb was dropped the Marines were told about it in nontechnical terms and he was able to be photographed beneath the Enola Gay (a friend of his played poker with Tibbets [the pilot]...
Anyone who thinks it was a bad thing to have dropped that Bomb doesn't have all the relevant facts... The Japanese were being firebombed nightly and still wouldn't surrender... They had trained their women and children to fight with pikes and based on Saipan were perfectly willing to murder their own children rather than submit...
No Marine who was slated to invade Japan had any expectation of surviving the experience...
That Bomb saved millions of lives on both sides...