SHELBURNE, Vt. — Richard Ketchum, a historian, writer and editor who co-founded a magazine about country living and wrote 17 books, has died. He was 89. Ketchum died Thursday at the Wake Robin retirement community in Shelburne. Ketchum wrote 17 books, six of which focused on the American Revolution, including "Saratoga: Turning Point of America's Revolutionary War," and "Winter Soldiers." After moving to Vermont for good in 1974 with his wife, Ketchum co-founded Blair & Ketchum's Country Journal, written for people who had moved to rural areas after growing tired of hectic city and suburban life.