Question: What was the maiden name of the person Jo Platt became Parliamentary Private Secretary to?

Context paragraphs:
Tessa Munt: Tessa Jane Munt (born 16 October 1959) is a British Liberal Democrat politician.  She was the Member of Parliament (MP) for Wells in Somerset from 2010 – 2015 and had previously served as the Parliamentary Private Secretary (PPS) to the Secretary of State for Business, Innovation and Skills, Vince Cable.  Following the appointment of Jo Swinson as PPS to the Leader of the Liberal Democrats, Nick Clegg, Tessa was appointed as Parliamentary Private Secretary to Liberal Democrat Secretary of State for Business, Innovation and Skills, Vince Cable.

Duncan Hames: Duncan John Hames (born 16 June 1977) is a British Liberal Democrat politician.  He was the Member of Parliament (MP) for the Chippenham constituency in Wiltshire from the 2010 general election until 30 March 2015, when parliament was dissolved for the election of May 2015, at which he was defeated by the Conservative Party candidate Michelle Donelan.  He served as Parliamentary Private Secretary to Nick Clegg when he was Deputy Prime Minister, a post in which he succeeded his wife Jo Swinson.

Jo Platt: Joanne Marie Platt is a British politician who represents the Labour Party.  At the 2017 general election, she was elected Member of Parliament for the Leigh constituency succeeding Andy Burnham who left Parliament to become the Mayor of Greater Manchester.  She is Leigh's first female MP.  On July 13, 2017, she became Parliamentary Private Secretary to Angela Rayner.

Neil O'Keefe: Neil Patrick O'Keefe (born 7 May 1947) is a retired Australian politician and lobbyist.  Born in Melbourne, he was educated at La Trobe University and then Monash University before becoming a teacher, union official and small business proprietor.  In 1984, he was elected to the Australian House of Representatives as the Labor member for Burke.  On 24 March 1993 he was appointed Parliamentary Secretary to the Minister for Transport and Communications.  On 24 December 1993 this portfolio became Parliamentary Secretary to the Minister for Industrial Relations and Transport.  On 24 March 1994 he became Parliamentary Secretary to the Minister for Transport, a position he held until Labor's electoral defeat in 1996.  O'Keefe retired unexpectedly in 2001, after he'd been preselected to run again in the election scheduled that year.

Paul Clark (politician): Paul Gordon Clark (born 29 April 1957) is a British Labour Party politician who was the Member of Parliament (MP) for Gillingham from 1997 to 2010.  During his time in government Paul Clark served as Parliamentary Private Secretary to Derry Irvine, Charles Falconer, John Prescott, and Ed Balls, before being promoted in 2008 to the role of Parliamentary Under Secretary of State at the Department for Transport.  In the 2010 election Clark was defeated by the Conservative candidate Rehman Chishti in the newly formed constituency of Gillingham and Rainham.

Chris Skidmore: Christopher James Skidmore, {'1': ", '2': ", '3': ", '4': "} (born 17 May 1981) is a British politician, author, and historian.  He has served since 2010 as the Conservative Member of Parliament (MP) for Kingswood, South Gloucestershire, and in 2015 became Parliamentary Private Secretary to the Chancellor of the Exchequer.  When Theresa May became Prime Minister in 2016 he was appointed Parliamentary Secretary at the Cabinet Office, where he is described as Minister for the Constitution.

Caroline Dinenage: Caroline Julia Dinenage (born 28 October 1971) is an English Conservative Party politician who was elected as Member of Parliament (MP) for Gosport at the 2010 general election.  She was re-elected in 2015 and 2017.  In July 2014, she was appointed as Parliamentary Private Secretary (PPS) to the Minister for Women and Equalities, Nicky Morgan.  In May 2015, Dinenage was appointed to the dual roles of Parliamentary Under Secretary of State at the Ministry of Justice and Minister for Women and Equalities at the Department for Education.  In July 2016, Dinenage was appointed Parliamentary Under Secretary of State for Women, Equalities and Early Years at the Department for Education.

Caroline Nokes: Caroline Fiona Ellen Nokes ("née" Perry; born 26 June 1972) is a Conservative Party politician in the United Kingdom.  She is the Member of Parliament for Romsey and Southampton North in Hampshire and has been since 2010.  From 2014–2015 she was Parliamentary Private Secretary at the Department for Work and Pensions.  In July 2016, Nokes was appointed Parliamentary Under Secretary of State at the DWP.

Angela Rayner: Angela Rayner ("née" Bowen; born 28 March 1980) is a British Labour politician.

Justin Tomlinson: Justin Paul Tomlinson (born 5 November 1976) is the Conservative MP for North Swindon.  He was originally a Conservative Councillor on Swindon Borough Council, being elected in 2000.  He is the current Member of Parliament for Swindon North.  He was appointed Parliamentary Under Secretary of State for Disabled People following the 2015 general election victory of the Conservative Party, serving until new Prime Minister Theresa May reshuffled the government in 2016.  Prior to that he was Parliamentary Private Secretary to Ed Vaizey.

Supporting paragraphs: Jo Platt Angela Rayner
Answer: Bowen