Question: What year was the winner of the Neath by-election born in?

Context paragraphs:
Neath by-election, 1945: The Neath by-election, 1945, was a parliamentary by-election held for the British House of Commons constituency of Neath in South Wales.

Rajesh Munat: Rajesh Munat (born April 29, 1963) is an Indian politician from Bharatiya Janata Party (BJP).  He has been elected in 3 Assembly elections from the seat of West constituency in Raipur.  Munat was born in the village of Mandsour in Malwa district, Madhya Pradesh.  He has been living in Raipur since his childhood.  His father's name is late Shri Punamchand Ji Munat.  Shri Rajesh Munat was first elected to Vidhan Sabha in a by-election in Raipur West constituency in year 2003 as a supported by Bharatiya Janata Party.  He is cabinet minister in the Bharatiya Janata Party-governed Indian state of Chhattisgarh Pradesh, as PWD minister he is responsible for law and order.

David Shearer: David James Shearer {'1': ", '2': ", '3': ", '4': "} (born 28 July 1957) is a New Zealand United Nations worker and politician.  He spent nearly 20 years working for the UN, managing the provision of aid to countries including Somalia, Rwanda, Liberia, Kosovo, Afghanistan, Lebanon and Iraq.  In 1992, Shearer was (together with his wife) named as New Zealander of the Year by the "New Zealand Herald".  The following year he was appointed as Member of the Order of the British Empire (MBE) in the British New Years Honours list.  In 2009 he won the Mount Albert by-election becoming a Member of the New Zealand Parliament for the Labour Party.  He was the leader of the Labour Party from December 2011 to August 2013.  He resigned from parliament in December 2016 and currently heads the United Nation's peace keeping mission in South Sudan.

Neath by-election, 1991: The Neath by-election, 1991 was a by-election held on 4 April 1991 for the British House of Commons constituency of Neath in Wales.  It was won by the Labour Party candidate Peter Hain.

Jashumatiben Korat: Jashumatiben Savjibhai Korat (27 July 1959) is an Indian politician, a former Minister for Women and Child Welfare of Gujarat state.  She was born into a farmer’s family in an Indian village near Junagadh.  She was a housewife until the sudden death of her husband.  She was elected to the state legislative assembly in a by-election after death of her husband, Shri Savjibhai Korat, in 1999, as the Bharatiya Janata Party candidate.  She was a Member of Legislative Assembly from Jetpur Constituency.  Later in 2001 she was appointed as State Minister for Women and Child Welfare.  Again in state election of year 2002 she was elected as Member of Legislative Assembly from Jetpur Constituency.  In year 2005 she was appointed as State Minister for Women and Child Welfare.  Again in year 2007 she was elected as Member of Legislative Assembly from Jetpur Constituency.  She was dropped from the Cabinet in 2008.

Peter Hain: Peter Gerald Hain, Baron Hain, PC (born 16 February 1950) is a British Labour Party politician, who was the Member of Parliament (MP) for Neath between 1991 and 2015, and served in the Cabinets of both Tony Blair and Gordon Brown.  He was the Leader of the House of Commons from 2003 to 2005 and Secretary of State for Northern Ireland from 2005 to 2007 under Blair, and as Secretary of State for Work and Pensions and Secretary of State for Wales from 2007 to 2008 under Brown.  In 2007, he ran for the Deputy Leadership of the Labour Party, coming fifth out of six candidates, although his failure to declare donations during this contest led to his resignation in 2008.  He later returned to the Cabinet from 2009 to 2010 as Welsh Secretary, before becoming Shadow Welsh Secretary in Ed Miliband's Shadow Cabinet from 2010 until 2012, when he announced his retirement from front-line politics.  In 2014 he announced he would stand down as the MP for Neath at the 2015 general election.  He was nominated for a life peerage in the 2015 Dissolution Honours.  Writing in the "Guardian", he subsequently outlined his views on House of Lords reform.  He came to the UK from South Africa as a teenager, and was a noted anti-apartheid campaigner in the 1970s.  He was also Honorary Vice-President of the Campaign for Homosexual Equality.  Peter Hain is on the board of African Potash, a company with a focus on building a vertically integrated platform for the mining, production and distribution of fertiliser.

Percy Joske: Sir Percy Ernest Joske, CMG (5 October 1895 – 25 April 1981) was an Australian politician.  Born in Melbourne, he attended Wesley College and then the University of Melbourne before being called to the bar in 1917.  He served in the military 1943-45, and returned to become a law lecturer at the University of Melbourne, a position he held from 1949 to 1952.  He was also an author.  In 1951, he was elected to the Australian House of Representatives as the Liberal member for the blue-ribbon seat of Balaclava, being elected in the by-election following the resignation of Thomas White.  Joske resigned in 1960 to become Judge of the Commonwealth Industrial Court.  He was subsequently appointed to the Supreme Court of the Australian Capital Territory (1960–77) and the Supreme Court of the Northern Territory (1961–77).  He was knighted in 1967, and died in 1981; a year before his death, he published a biography of Sir Robert Menzies.

Benjamin Bennett (politician): Benjamin Holland Bennett (1872 – 12 July 1939) was an Australian politician.  Born in Young, New South Wales, he was educated at public schools before becoming the manager and editor of the family-run newspaper in Young.  In 1912, he was elected to the Australian House of Representatives in the by-election that followed the resignation of member for Werriwa David Hall; Bennett represented the Labor Party.  However, he retired before the federal election of the next year, becoming a public servant in Sydney.  Bennett died in 1939.

Graham Pratten: Frederick Graham Pratten (13 December 1899 – 18 December 1977) was an Australian politician.  Born in Sydney, he attended North Sydney Grammar School and the University of Sydney, and served in World War I 1917-18.  He then became the managing director of the family companies.  In 1928 his uncle, Herbert Pratten, a Nationalist MP, died, and Frederick was selected by the Nationalists to replace him in the resulting by-election for the seat of Martin.  He was elected, and was returned in the federal election later that year.  He was defeated in the elections of 1929.  He was subsequently a member of the New South Wales Legislative Council from 1937 to 1976 and a company director in Sydney.  He defected to the Country Party in 1959.  Pratten died in 1977.

Alex Campbell (politician): Alexander Bradshaw Campbell, (born December 1, 1933 in Summerside, Prince Edward Island) is a former politician of Prince Edward Island, Canada.  He is the son of former premier Thane A. Campbell and Cecilia L. Bradshaw.  He entered politics by winning a seat in the legislature through a 1965 by-election in 5th Prince.  Later the same year he was elected leader of the PEI Liberal Party and, in 1966 took the party to power becoming, at 32, one of the youngest premiers ever elected in Canada.  He also held the position of Attorney-General from 1966 until 1969.

Supporting paragraphs: Neath by-election, 1991 Peter Hain
Answer: 1950