Patrick Hemingway, the last surviving child of Ernest Hemingway who in emulation of his father lived for years in Africa and later oversaw numerous posthumous works by the Nobel laureate, has died. He was 97. As an executor of his father's estate, he approved reissues of such classics as "A Farewell to Arms" and "A Moveable Feast," featuring revised texts and additional commentary from Patrick Hemingway and others. While brother Gregory Hemingway had a deeply troubled relationship with his famous father, Patrick Hemingway spoke proudly of his heritage and welcomed the chance to bring up the family name.