“A scion of a prominent German-Jewish family, Mr. Morgenthau was a son of President Franklin D. Roosevelt’s treasury secretary, a grandson of the U.S. ambassador to the Ottoman Empire under President Woodrow Wilson, the older brother of former Manhattan district attorney Robert M. Morgenthau, and a cousin of Pulitzer Prize-winning author Barbara W. Tuchman. … His years as a producer at WGBH in Boston, from 1955 to 1977, coincided with the birth of public television.”