Disappearance
In November 1909, Slocum set sail for the West Indies on one of his usual winter voyages. He had also expressed interest in starting his next adventure, exploring the Orinoco, Rio Negro and Amazon Rivers. Slocum was never heard from again. In July 1910, his wife informed the newspapers that she believed he was lost at sea.
At the time, most who knew Slocum believed that the Spray had been run down by a steamer or struck by a whale, the Spray being too sound a craft and Slocum too experienced a mariner for any other cause to be considered likely.
Years later, an analysis by Howard I. Chapelle, curator of maritime history at the Smithsonian Institution and a noted expert on small sailing-craft, demonstrated that the Spray was stable under most circumstances but could easily capsize if heeled beyond a relatively shallow angle. He felt that Slocum was merely lucky that his unstable vessel had not killed him earlier.
Despite being an experienced mariner, Slocum never learned to swim and considered learning to be useless.
In 1924, Joshua Slocum was declared legally dead.
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