I wonder if the name was inspired by the song "Nature Boy"? This was a huge hit for Nat King Cole in 1948 and was recorded successfully by several other artists for years afterwards. In fact, it still turns up from time to time in new versions (which puzzles me, as I don't see how it's anything special.)
Interesting art from a young John Buscema. I particularly like the way he handles rough seas and water effects, something a lot of artists gloss over.
Another interesting comic rescued from obscurity, thanks for posting it.