His writings, which stretched across eight decades, helped Americans understand a president who transformed the office and shaped the postwar years.

NEW YORK — William E. Leuchtenburg, a prize-winning historian widely admired for his authoritative writings on the U.S. presidency and as the reigning scholar on Franklin Roosevelt and the New Deal, has died at 102.

William E. Leuchtenburg, a leading scholar of Franklin Roosevelt and the Great Depression, has died at age 102.