James A. Michener

From the Wikipedia page

James Albert Michener (/ˈmɪtʃnər/;[1] February 3, 1907 – October 16, 1997) was an American author of more than 40 books, most of which were fictional, lengthy family sagas covering the lives of many generations in particular geographic locales and incorporating solid history. Michener had numerous bestsellers and works selected for Book of the Month Club, and was known for his meticulous research behind the books.

Author of The Bridge at Andau.