Question: What army did the uncle of Jean Gordon command?

full_context: Document 1: Twelfth United States Army Group: The Twelfth United States Army Group was the largest and most powerful United States Army formation ever to take to the field. It controlled the majority of American forces on the Western Front in 1944 and 1945. It was commanded by General Omar Bradley with its headquarters established in London on 14 July 1944.
Document 2: Martin Blumenson: Martin Blumenson (8 November 1918–15 April 2005) was an American military historian who served as a historical officer with the Third and Seventh Armies in World War II and later became a prolific author. His works included an authoritative biography of General George S. Patton.
Document 3: George S. Patton: General George Smith Patton Jr. (November 11, 1885 – December 21, 1945) was a senior officer of the United States Army who commanded the U.S. Seventh Army in the Mediterranean and European theaters of World War II, but is best known for his leadership of the U.S. Third Army in France and Germany following the Allied invasion of Normandy in June 1944.
Document 4: Natalie Sorokin: Natalie Sorokin (born 1926), a French woman, had affairs with Simone de Beauvoir and Jean-Paul Sartre. In June 1943 Sorokin's mother complained to the school authorities that De Beauvoir had led her daughter astray. De Beauvoir was accused of behavior leading to the corruption of a minor and her teaching license was suspended for the rest of her life. Sorokin later said her relationship with De Beauvoir and Sartre came to an end when she found this relationship serving only one part. She then started writing and worked for radio.
Document 5: Lucy Gordon (actress): Lucy Gordon (22 May 1980 – 20 May 2009) was an English actress and model. She became a face of CoverGirl in 1997 before starting an acting career. Her first film was "Perfume" in 2001 before going on to have small roles in "Spider-Man 3", "Serendipity" and "The Four Feathers". Gordon had played the actress and singer Jane Birkin in the film "", a biopic of singer-songwriter Serge Gainsbourg. Before the film was released, she was found hanged in her flat in Paris on 20 May 2009 after committing suicide.
Document 6: Kay Summersby: Kay Summersby (23 November 1908 – 20 January 1975) was a member of the British Mechanised Transport Corps during World War II, who served as a chauffeur and later as personal secretary to Dwight D. Eisenhower during his period as Supreme Commander Allied Expeditionary Force in command of the Allied forces in north west Europe. They were together a great deal until the war ended, when Eisenhower cut ties and returned to the United States. It is generally agreed that Summersby and Eisenhower became extremely close during the war, and some writers have suggested that they had a sexual relationship, although several people who knew both of them at the time have rejected that claim, as have most of Eisenhower's biographers.
Document 7: Dwight D. Eisenhower: Dwight David "Ike" Eisenhower ( ; October 14, 1890 – March 28, 1969) was an American politician and Army general who served as the 34th President of the United States from 1953 until 1961. During World War II, he was a five-star general in the United States Army and served as Supreme Commander of the Allied Expeditionary Forces in Europe. He was responsible for planning and supervising the invasion of North Africa in Operation Torch in 1942–43 and the successful invasion of France and Germany in 1944–45 from the Western Front.
Document 8: Martha Saxton: Martha Saxton is a professor of history and women's and gender studies at Amherst College. Professor Saxton has undertaken biographies of figures as diverse as 1950s bombshell Jayne Mansfield and nineteenth-century author and reformer Louisa May Alcott. Her most recent publication is "Being Good: Women's Moral Values in Early America" (Hill and Wang, 2003). She is returning to biography as she embarks on a new project entitled "The Widow Washington", on President George Washington's mother Mary Ball Washington. She is married to Enrico Ferorelli. She lives in New York City. The TV film "The Jayne Mansfield Story" featuring Loni Anderson and Arnold Schwarzenegger was based on her book "Jayne Mansfield and the American fifties".
Document 9: Sue Sarafian Jehl: Sue Jehl (née Sue Sarafian )(February 14, 1917 – April 13, 1997) was one of the best known Women's Auxiliary Army Corps (WAAC) personnel to serve the United States during World War II. She was one of the three personal secretaries to General Dwight David Eisenhower, serving him from January 1943 to April 1947.
Document 10: 66th Armor Regiment: The 66th Armor Regiment is the oldest armored unit in the United States Army (see Iron Knights: the United States 66th Armored Regiment, by Maj. Gordon A. Blaker), tracing its lineage to the 301st Tank Battalion which served with distinction soon after it was formed in the First World War; the 301st trained at Camp Meade, MD, where then Cpt. Dwight D. Eisenhower was an instructor. It has often been rumored that the 301st, the parent unit of the 66th, was first commanded by Col. George S. Patton, but this appears not to have been the case; while Patton was the first officer assigned to the Tank Corps, and while the 301st Tank Battalion was the first unit formed, Patton went nearly immediately to France to train Americans attached to Allied commands. The 301st was the only American heavy tank battalion to have seen action in the war. After the war, the 301st transitioned in the Regular Army to become the 66th Infantry Regiment (Light Tanks) by way of the 16th Tank Battalion.
Document 11: Sixth United States Army Group: The Sixth United States Army Group was an Allied Army Group that fought in the European Theater of Operations during World War II. Made up of field armies from both the United States Army and the French Army, it fought in France, Germany, Austria, and, briefly, Italy. Also referred to as the Southern Group of Armies, it was established in July 1944 and commanded throughout its duration by General Jacob L. Devers.
Document 12: Matthew Ridgway: General Matthew Bunker Ridgway (March 3, 1895 – July 26, 1993) was the 19 Chief of Staff of the United States Army. He served with great distinction during World War II, where he was the Commanding General (CG) of the 82nd Airborne Division, leading it in action in Sicily, Italy and Normandy, before taking command of the newly formed XVIII Airborne Corps in August 1944, holding this post until the end of the war, commanding it in the Battle of the Bulge, Operation Varsity and the Western Allied invasion of Germany.
Document 13: Jean Gordon (Red Cross): Jean Gordon, a niece by marriage of General Patton, was a Boston socialite and a Red Cross worker during World War II. She presumably had an ongoing affair with Patton, allegedly beginning years before the war and continuing behind the front lines of wartime Europe. She committed suicide shortly after his death. However, the contending story is that she was despondent over a young officer who had broken off their wartime affair.
Document 14: Dorothy Gordon (actor): Dorothy Hetty Fosbery Jenner {'1': ", '2': ", '3': ", '4': "} , also known as Dorothy Gordon (1 March 1891 – 24 March 1985) was an Australian actress, journalist, and radio broadcaster. She worked as an actress in Hollywood, played the lead in the Australian film "Hills of Hate" (1926) and did art direction on "For the Term of His Natural Life" (1927). She is best known for her long career as a columnist and radio commentator under the name "Andrea". She was a POW in Hong Kong during World War II.
Document 15: Maria Antonescu: Maria Antonescu (born Maria Niculescu, also known as Maria General Antonescu, later Maria Mareșal Antonescu, or Rica Antonescu; November 3, 1892 – October 18, 1964) was a Romanian socialite and philanthropist, the wife of World War II authoritarian Prime Minister and "Conducător" Ion Antonescu. A long-time resident of France, she was twice married before her wedding to Antonescu, and became especially known for her leadership of charitable organization grouped in the Social Works Patronage Council organization, having Veturia Goga for her main collaborator. The Council profited significantly from antisemitic policies targeting Romanian Jews, and especially from the deportation of Bessarabian Jews into Transnistria, taking over several hundred million lei resulting from arbitrary confiscations and extortion.
ground_truth: U.S. Seventh Army