He graduated from Princeton University in 1939. During his time at university, he ran on the cross country team, worked on Theatre Intime, and was an editorial-board member of the Daily Princetonian. Despite his family's social stature, Morgenthau was frozen out of bicker as a sophomore in 1937, along with four of the other 11 Jewish students in the class. During World War II, Morgenthau served in the US Army. From 1945, he was involved in the television business, at various times working as an author, producer and manager for the larger national institutions like NBC, CBS and ABC, while serving as President of Gannaway-Morgenthau Productions, Inc. From 1955-77, Morgenthau was a chief producer of WGBH. His shows at WGBH won Peabody, Emmy, United Press International, Educational Film Library Association, and Flaherty Film Festival awards. He also served as acting program manager at WYNC. Morgenthau served as a vice president of the Eleanor Roosevelt Institute. He also was a manager of the Morse Communication Center at Brandeis University. Morgenthau III was producer of Prospects of Mankind with Eleanor Roosevelt, The Negro and the American Promise, and Conversation with Svetlana Alliluyeva . He was a contributor to Screamers and story editor of.
Authorship
He wrote Mostly Morgenthaus: A Family History, focused on several patriarchs: The first Morgenthau of record, Moses, impoverished teacher of Hebrew from :de:Gleusdorf|Gleusdorf in Bavaria, who later became a ritual slaughterer married to a rabbi’s daughter, was required to take a family name when the Jews of Bavaria were granted citizenship in 1813. Waiting in line at city hall in the predawn, he looked at the damp ground and decided to call himself Morgen Tau. His and Brunhilda Morgenthau's son, Lazarus was making nicotine-free cigars, candy from pine needles, tongue scrapers, and gum-label machines. Married in 1843 to Seline Babette Guggenheim, he moved to Mannheim and opened a cigar manufactory, a business that grew rapidly when his brother Max wrote from California in 1849 suggesting he ship his cigars to the American market. Lazarus's success had been extraordinary, but the luck that had followed him could not prevent the business failure that followed the rise of protective tariffs in the United States when war broke out there in 1861. Financially overextended, Lazarus moved to New York in 1866, where his fortunes plummeted further. Lazarus's ninth child, Henry Sr., saw his mission as restoring the family to its rightful position. As Wilson's ambassador to the Ottoman Empire during the crucial years before and during World War I, he supported the Jews in Palestine and heroically rescued Armenians persecuted by the Turks. Henry Jr. was a close friend of both Eleanor and Franklin Roosevelt, FDR's Secretary of the Treasury and leader of U.S. efforts on behalf of Holocaust survivors. In his book Henry Morgenthau III casts doubt on the alleged Communist associations of his father's Treasury aide Harry Dexter White, whom Whitaker Chambers accused of being a Soviet spy and conspirator. In 2016, at the age of 99, Morgenthau III published his first book of poetry entitled "A Sunday in Purgatory."
Henry Morgenthau III was an observant Jew who rediscovered his religion after his marriage to Ruth S. Morgenthau in 1962. They had three children together: Henry Morgenthau, cinematographerKramer Morgenthau and Sarah Elinor Morgenthau Wessel. Morgenthau turned 100 on January 11, 2017, He celebrated the occasion in Washington DC with 35 relatives and friends. Henry Morgenthau III died on July 10, 2018 at the age of 101.