James MacGregor Burns ( August 3 , 1918 in Melrose , Massachusetts -- July 15 , 2014 in Williamstown , Massachusetts ) was an American historian and political scientist , presidential biographer , and authority on leadership studies .
James MacGregor Burns ( August 3 , 1918 -- July 15 , 2014 ) was an American historian and political scientist , presidential biographer , and authority on leadership studies .