For all its bravura, Mr. Fairfax’s seafaring almost pales beside his earlier ventures. Footloose and handsome, he was a flesh-and-blood character out of Graham Greene, with more than a dash of Hemingway and Ian Fleming shaken in.

At 9, he settled a dispute with a pistol. At 13, he lit out for the Amazon jungle.

At 20, he attempted suicide-by-jaguar. Afterward he was apprenticed to a pirate. To please his mother, who did not take kindly to his being a pirate, he briefly managed a mink farm, one of the few truly dull entries on his otherwise crackling résumé, which lately included a career as a professional gambler.