In May 1901, just three years after Joshua Slocum's legendary solo voyage around the world, another professional seaman idled by the passing of the Age of Sail set off on an extraordinary ocean journey. Saying goodbye to his wife and children, he put to sea from Victoria, British Columbia, with one other man in a converted Native American war canoe. Voss's objective was to circle the world in a boat smaller than Slocum's Spray, and his canoe, which he named Tilikum, certainly qualified. Although 38 feet long, it was a mere 5 and a half feet wide and drew just 24 inches when fully loaded. When...