I’ve seen those weird theories. Not gonna buy into them, until I have more proof-cause that sounds like a potential “great deception” candidate.
Not until all of Admiral Byrd’s documents are declassified for starters, and then other proofs/documents to follow.
If it’s true then there will be records that can be declassified. I’m from Missouri - show me the proof!LOL
However, the travels of a lot of biggies to Antarctica and the rumors around them ... were sobering.