Halliburton was a traveller, adventurer and author. He was the original badass playboy explorers and lived a life that Indiana Jones would be jealous of.
For his last trip in 1939, however, he salvaged an old Chinese Junk and planned to sail from Hong Kong to San Francisco. During his travels, however, he disappeared without a trace. The US Navy launched a massive search, but no evidence was found of the ship or her crew.