Question: Where did Beatrice Helen Beckett's husband serve as prime minister?

full_context: Document 1: Anthony Eden hat: An "Anthony Eden" hat, or simply an "Anthony Eden", was a silk-brimmed, black felt Homburg of the kind favoured in the 1930s by Anthony Eden, later 1st Earl of Avon (1897–1977). Eden was a Cabinet Minister in the British National Government, holding the offices of Lord Privy Seal from 1934–1935 and Foreign Secretary 1935 to 1938. He was later Dominions Secretary from 1939–1940, War Secretary in 1940, Foreign Secretary from 1940–1945 and 1951–1955, and Prime Minister 1955 to 1957.
Document 2: Neville Chamberlain: Arthur Neville Chamberlain, ( ; 18 March 1869 – 9 November 1940) was a British Conservative politician who served as Prime Minister of the United Kingdom from May 1937 to May 1940. Chamberlain is best known for his appeasement foreign policy, and in particular for his signing of the Munich Agreement in 1938, conceding the German-speaking Sudetenland region of Czechoslovakia to Germany. However, when Adolf Hitler later invaded Poland, the UK declared war on Germany on 3 September 1939, and Chamberlain led Britain through the first eight months of World War II.
Document 3: Winston Churchill: Sir Winston Leonard Spencer-Churchill, {'1': ", '2': ", '3': ", '4': "} (30 November 187424 January 1965) was a British statesman, army officer, and writer. He served as Prime Minister of the United Kingdom from 1940 to 1945 and again from 1951 to 1955. As a Member of Parliament (MP), he represented five constituencies over the course of his career. As Prime Minister, Churchill led Britain to victory during World War II. He led the Conservative Party for fifteen years from 1940 to 1955.
Document 4: Harold Macmillan: Maurice Harold Macmillan, 1st Earl of Stockton, {'1': ", '2': ", '3': ", '4': "} (10 February 1894 – 29 December 1986) was a British statesman of the Conservative Party who served as Prime Minister of the United Kingdom from 1957 to 1963. Nicknamed "Supermac", he was known for his pragmatism, wit and unflappability.
Document 5: Beatrice Beckett: Beatrice Helen Beckett (27 July 1905 – 29 June 1957) was the first wife of the British statesman Anthony Eden.
Document 6: Stanley Baldwin: Stanley Baldwin, 1st Earl Baldwin of Bewdley, (3 August 186714 December 1947) was a British Conservative politician who dominated the government in his country between the two world wars. Three times Prime Minister, he is the only premier to have served under three monarchs (George V, Edward VIII and George VI).
Document 7: Beatrice de Cardi: Beatrice Eileen de Cardi, {'1': ", '2': ", '3': ", '4': "} (5 June 1914 – 5 July 2016) was a British archaeologist, specializing in the study of the Persian Gulf and the Baluchistan region of Pakistan. She was president of the British Foundation for the Study of Arabia, and she was Secretary of the Council for British Archaeology from 1949 to 1973. At the end of her career, she was the world's oldest practising archaeologist.
Document 8: Anthony Eden: Robert Anthony Eden, 1st Earl of Avon, (12 June 1897 – 14 January 1977) was a British Conservative politician who served three periods as Foreign Secretary and then a relatively brief term as Prime Minister of the United Kingdom from 1955 to 1957.
Document 9: Barbara Castle: Barbara Anne Castle, Baroness Castle of Blackburn, PC, GCOT (née Betts, 6 October 1910 – 3 May 2002) was a British Labour Party politician who was the Member of Parliament for Blackburn from 1945 to 1979, making her the longest-serving female MP in the history of the House of Commons, until that record was broken in 2007 by Gwyneth Dunwoody. She later became the Member of the European Parliament for Greater Manchester from 1979 to 1989. One of the most significant Labour Party politicians of the 20th century, she served in the Cabinet under Prime Minister Harold Wilson in a number of roles, including as Secretary of State for Employment, Secretary of State for Health and Social Services, and First Secretary of State.
Document 10: Clarissa Eden: Anne Clarissa Eden, Dowager Countess of Avon ("née" Spencer-Churchill; born 28 June 1920) is the widow of Anthony Eden, 1st Earl of Avon (1897–1977), who was British Prime Minister from 1955 to 1957. She married Eden in 1952, becoming Lady Eden in 1954 when he was made a Knight of the Garter, and then becoming Countess of Avon in 1961 on her husband's elevation to the peerage. She is also the niece of the prime minister Winston Churchill. Her memoir, sub-titled "From Churchill to Eden", was published in 2007 under the name of Clarissa Eden.
Document 11: Lucy Baldwin: Lucy Baldwin, Countess Baldwin of Bewdley, GBE, DGStJ (née Ridsdale; 19 June 1869 – 17 June 1945) was an English writer and activist for maternity health. From 1892 until her death in 1945, she was the wife of Stanley Baldwin, three-time Prime Minister of the United Kingdom. She was invested as a Dame of Grace, Order of Saint John of Jerusalem and a Dame Grand Cross, Order of the British Empire, and styled as Countess Baldwin of Bewdley on 8 June 1937.
Document 12: Jane Barton: Jane (Jeanie) Barton, Lady Barton (née Ross; born 11 June 1851 – 23 March 1938) was the wife of first Prime Minister of Australia, Sir Edmund Barton of the Protectionist Party. She was the eldest daughter of David Ross of Newcastle, New South Wales. In 1877, at the age of 26, she married Edmund Barton, who was then a New South Wales barrister. Two years later he won a seat in the New South Wales Legislative Assembly representing the now abolished electoral district of University of Sydney. From 1896, the Bartons' house Miandetta in Carabella Street, North Sydney was the site of 'open house' meetings on the subject of Federation. Some of the most frequent attendees of the meeting would become prominent in the formation of Australia, namely Robert Garran, Atlee Hunt and Thomas Bavin. One of the ways in which Lady Barton helped her husband with the cause of Federation was when she served as vice-president of the second Sydney Women's Federal League. Later in life, after her husband left the Australian Parliament in 1903, she served as the first president of the Queen's Club in Sydney and was a member of the first committee of the Crown Street Women's Hospital. After her husband's death in 1920, she moved to London, returning to Sydney in 1927. In May 1935, she made possibly her last appearance in public at a service in Centennial Park to celebrate the silver jubilee of King George V. In March 1938, Lady Barton died aged 86 years at the home she and her husband moved into in 1909 called Avenel in Mona Road, the Darling Point, Sydney. She had six children by her husband:
Document 13: Joe Beckett: Joseph Beckett (4 April 1892 – 12 March 1965 (aged 72)) born in Wickham, Hampshire was an English professional light heavy/cruiser/heavyweight boxer of the 1910s and early 1920s, who won the National Sporting Club (NSC) (subsequently known as the British Boxing Board of Control (BBBofC)) British heavyweight title, and British Empire heavyweight title, and challenged for the NSC British Light heavyweight title, and European Boxing Union (EBU) heavyweight title.
Document 14: Conservative government, 1957–1964: The Conservative government of the United Kingdom that began in 1957 and ended in 1964 consisted of three ministries: the first Macmillan ministry, second Macmillan ministry, and then the Douglas-Home ministry. They were led by Harold Macmillan and Sir Alec Douglas-Home, who were appointed respectively by Queen Elizabeth II.
Document 15: John Major: Sir John Major, {'1': ", '2': ", '3': ", '4': "} (born 29 March 1943) is a British politician who was Prime Minister of the United Kingdom and Leader of the Conservative Party from 1990 to 1997. He served as Foreign Secretary and then Chancellor of the Exchequer in the Thatcher Government from 1989 to 1990, and was the Member of Parliament (MP) for Huntingdon from 1979 until he retired in 2001. Since Margaret Thatcher's death in 2013, he is the oldest living former Prime Minister.
ground_truth: United Kingdom