Question: Who was the father of a British nephew of Adolf Hitler who worked in Germany and later emigrated to America in 1939?

full_context: Document 1: Wilhelm Dichter: Wilhelm Dichter is a Polish American writer who has written three novels based on his life. He was born in 1935 in Borysław (in modern-day Ukraine), where he survived the war. His father had died, and he and his mother (remarried after the war) came to live in Poland toward the end of 1944. He finished his studies at the Warsaw Polytechnic, where he earned his doctorate in mechanical engineering and worked for 13 years until 1968. The antisemitic campaign in 1968 in Poland provided the opportunity for him and his family to emigrate, through Vienna and Rome, eventually settling in the United States. As an expert in ballistics, he worked at Colt Firearms in the R&D division on Long Island, New York, and later in Hartford Connecticut. In 1978, he made a transition to the field of image processing, becoming an image processing algorithm design specialist at the Linotype-Hell company. Wilhelm Dichter is now retired from his engineering and scientific work. When he is not writing, Wilhelm and his wife Ola spend quality time with their grandchildren. He and Ola live in the Boston area.
Document 2: Eva Braun: Eva Anna Paula Hitler ("née" Braun; 6 February 1912 – 30 April 1945) was the longtime companion of Adolf Hitler and, for fewer than 40 hours, his wife. Braun met Hitler in Munich when she was a 17-year-old assistant and model for his personal photographer; she began seeing him often about two years later. She attempted suicide twice during their early relationship. By 1936, she was a part of his household at the Berghof near Berchtesgaden and lived a sheltered life throughout World War II. Braun was a photographer, and many of the surviving colour photographs and films of Hitler were taken by her. She was a key figure within Hitler's inner social circle, but did not attend public events with him until mid-1944, when her sister Gretl married Hermann Fegelein, the SS liaison officer on his staff.
Document 3: Hedwig von Trapp: Hedwig Maria Adolphine Gobertina von Trapp (28 July 1917 – 14 September 1972) was the fifth child of Georg von Trapp and his first wife, Agatha Whitehead von Trapp. She was a member of the Trapp Family Singers, whose lives were the inspiration for the play and movie "The Sound of Music". She was portrayed as the character "Brigitta".
Document 4: Saturn (alligator): Born in 1936 in the state of Mississippi, United States, Saturn soon was brought to Germany, residing at the Berlin Zoological Garden. It was here his association with Adolf Hitler originated, as Hitler reportedly enjoyed visiting the zoo and especially liked the alligator. However, while Hitler may have viewed Saturn at the zoo, he was never Hitler's personal pet. During World War II, the Berlin zoo was destroyed, but Saturn was discovered by British soldiers, who then gave the alligator to the Soviets in 1946. He has lived at the Moscow Zoo ever since, and has become one of the zoo's most famous and popular attractions.
Document 5: Rudolf Hess: Rudolf Walter Richard Hess (Heß in German; 26 April 1894 – 17 August 1987), was a prominent politician in Nazi Germany. Appointed Deputy Führer to Adolf Hitler in 1933, he served in this position until 1941, when he flew solo to Scotland in an attempt to negotiate peace with the United Kingdom during World War II. He was taken prisoner and eventually was convicted of crimes against peace, serving a life sentence until his suicide.
Document 6: Heinz Heydrich: Heinz Siegfried Heydrich (29 September 1905 – 19 November 1944) was the son of Richard Bruno Heydrich and the younger brother of SS-Obergruppenführer Reinhard Heydrich. After the death of his brother, Heinz Heydrich helped Jews escape the Holocaust.
Document 7: Bridget Dowling: Bridget Elizabeth Hitler, née Dowling (alternative Brigid) (3 July 1891 – 18 November 1969), was Adolf Hitler's sister-in-law via her marriage to Alois Hitler, Jr.. She was the mother of Alois Hitler's son William Patrick Hitler. She was born and raised in Dublin, Ireland.
Document 8: Otto Hutter: Otto Fred Hutter (b 29 February 1924) is Emeritus Regius Professor of Physiology at the University of Glasgow, is a physiologist. He was born in Vienna, becoming a British citizen in 1947., His father was an estate agent and his mother had been a nurse in World War 1. He first attended secondary school at the Zwi Perez Chajes Gymnasium. He left Vienna in December 1938 as part of the Kindertransport which allowed Jewish children to escape the German occupation. After arriving in the UK, he attended the Bishop Stortford College as a boarder. From 1942, after leaving school, he worked as a laboratory technician at the Wellcome Physiological Research Laboratories in Beckenham, Kent. One project addressed the standardisation of penicillin production, then of considerable importance for the war effort.
Document 9: William Patrick Stuart-Houston: William Patrick "Willy" Stuart-Houston ("né" Hitler; 12 March 1911 – 14 July 1987) was a British nephew of Adolf Hitler who worked in Germany and later emigrated to America in 1939. Born to Adolf's brother, Alois Hitler, Jr. and his first wife, Bridget Dowling, in Liverpool, England, William Hitler later moved to Germany, but subsequently emigrated to the United States, where he served in the United States Navy in World War II.
Document 10: Jane Emily Herbert: Jane Emily Herbert was born to parents Henry Monckton Herbert and Elizabeth Jane Barlow. In 1839 her father kept a school in Arklow, County Wicklow, as evidenced by an article that appeared in "The Freeman's Journal" of 8 November 1839, while her mother and some of her siblings attended to the farm of about 50 acres. The article states the family moved in a respectable station in society. Her mother, Elizabeth Jane, was a sister of Arthur Craven Barlow, Esq., of Saunders Court & Mt Anna in Wexford, and Thomas William Barlow, Esq.,(as evidenced by the dedication in "The Bride of Imael" which reads: "To my widowed mother and her brothers Arthur Craven Barlow and Thomas William Barlow Esq., of Dublin"). Both were prominent in society, the latter being for many years the solicitor for the Board of Ordnance in Ireland, and both married into the Jeffares family of Wexford. Following the death of Arthur's first wife, Susannah, about one year after their marriage, he married Dorothy Cooper, daughter of John Cooper of Birchgrove, Wexford. Their children immigrated to New Zealand, while most of Thomas William and Ann Jeffare's children immigrated to Australia.
Document 11: Brigitte Harris case: Brigitte Harris (born June 6, 1981) is a Queens, New York woman who committed the suffocation and castration manslaughter of her Liberian-born father Eric Goodridge in her Rockaway, Queens apartment. Both Brigitte and her sister, Carleen Goodridge, had claimed that their father had raped and sexually abused them since they were little girls. Due to her abuse allegations, Brigitte received an outpouring of supporters, including US Senator Chuck Schumer, New York State Senators Diane Savino and Eric Adams. At Brigitte's highly publicized trial in fall 2009, she was convicted of second-degree manslaughter and sentenced to 5 to 15 years in prison.
Document 12: Dervla Kirwan: Kirwan was born in Churchtown, Dublin, Ireland. Her father, Peter Kirwan, was an insurance broker, and her mother, Maureen O'Driscoll, was a language teacher. She is the youngest of three daughters. She attended Loreto Beaufort in Rathfarnham, Dublin, a Catholic school for girls, until the age of 16, when she was asked to leave as her career as an actress started to progress. Kirwan completed secondary school at the now-defunct non-denominational school Sandymount High School in Dublin.
Document 13: Hitler Sites: Hitler Sites: A City-by-City Guidebook (Austria, Germany, France, United States) by Steven Lehrer is a history and tour of European and American sites related to Adolf Hitler These sites cannot be found in standard guidebooks. Their descriptions comprise a topographical biography of the German dictator and can clarify who and what he actually was. Among the many sites are the middle-class homes and apartments where he grew up in rural Austria and Linz; the tenements and shelters he inhabited before ending up homeless, lice-infested, freezing and penniless in the streets of Vienna; the expansive Munich apartment where he lived as a rising politician and as Führer; and his country home, the Berghof, in Berchtesgaden. Also included are the Führerbau, where he signed the Munich Accords, and the New York home of his reviled nephew, William Patrick Hitler, who enlisted in the US Navy to fight against his uncle during World War II.
Document 14: Gretl Braun: Margarete Berta "Gretl" Braun (31 August 1915 – 10 October 1987) was one of the two sisters of Eva Braun. She was a member of the inner social circle of Adolf Hitler at the Berghof. Braun married SS-Gruppenführer Hermann Fegelein, a liaison officer on Hitler's staff, on 3 June 1944. Fegelein was shot for desertion in the closing days of World War II. Gretl became the sister-in-law of the Nazi dictator following his marriage to Eva, less than 40 hours before the couple killed themselves together.
Document 15: Molly Childers: Mary Alden Osgood Childers, MBE (14 December 1875 – 1 January 1964) was an American-born Irish writer and Irish nationalist. She was the daughter of Dr Hamilton Osgood and Margaret Cushing Osgood of Beacon Hill, Boston, Massachusetts. Her older sister was Gretchen Osgood Warren. Molly married the writer and Irish nationalist, Robert Erskine Childers. Their son, Erskine Hamilton Childers, became the fourth President of Ireland.
ground_truth: Alois Hitler's