"No people were intentionally buried inside the Hoover Dam's concrete. While 96 deaths were officially recorded during construction, the belief that bodies were entombed is a myth. The dam was built in interlocking blocks, and workers who died were recovered or accounted for"

I believe that is incorrect. My grand-uncle worked on the Hoover Dam. The safety precautions were limited, to be charitable. Suspending manned Bobcat (equivalent) excavators from ropes, lowered down to the sides of the dam was witnessed. The reason the 96 names are not on the memorial plaque, is because they literally couldn't keep track and aren't exactly sure. IDs and IDing not required at that time. Conveniently, everyone who worked on the Hoover Dam project is now dead.

There were thousands of workers, tens swapped out daily (which is why there are fewer deaths than you would expect). If you weren't a top performer because you were the lowest on the near-manual boring machine with mud/water and stone dumping on you from above, you were replaced. This was built during the Great Depression where there were crowds appearing at the gates everyday looking for the opportunity to work. My great-grandfather, grandfather and granduncle all worked it as Foreman, Carpenter, and Shift Supervisor, respectively. These were at different times in the project.

My extended family all know a different version where there certainly are bodies. I think they are more credible dead, than the official numbers for a highly controversial project back then. Peck wasn't an outlier, but it had the problem of accounting for the people lost. The Hoover project did not.