Question: George Walker was an English footballer, who played for which professional football club based in Selhurst, London?

full_context: Document 1: Leicester City F.C.: Leicester City Football Club is an English professional football club based at the King Power Stadium in Leicester. They compete in the Premier League, England's top division of football.
Document 2: George Graham (footballer): George Graham (born 30 November 1944) is a Scottish former football player and manager. He made 455 appearances in the Football League as a midfielder or forward for Aston Villa, Chelsea, Arsenal, Manchester United, Portsmouth and Crystal Palace. Approximately half of his total appearances were for Arsenal and he was part of the side that won the Football League Championship and FA Cup "double" in 1971. Graham also made 17 appearances for California Surf in 1978. He then moved to the coaching staff at Crystal Palace, before joining former Palace manager Terry Venables as a coach at Queens Park Rangers. As a manager, he won numerous domestic and European honours with Arsenal between 1987 and 1995, and he also managed Millwall, Leeds United and Tottenham Hotspur.
Document 3: Bill Berry (footballer, born 1904): William George Berry, known in France as George Berry or Georges Berry (born Hackney, 18 August 1904, died 1972) was an English association football player. He played professionally for clubs including Gillingham, Charlton Athletic, Crystal Palace, Brentford and Bournemouth & Boscombe Athletic between 1923 and 1934.
Document 4: George Petchey: George W Petchey (born 24 June 1931 in Whitechapel, London) is an English former footballer who made 400 appearances in the Football League for West Ham United, Queens Park Rangers and Crystal Palace, playing at wing half (defensive midfield). He was well known for being a hard tackling, midfield general or enforcer, whilst also being one of the first of his generation to play an attractive, keep ball style of play at the same time.
Document 5: History of Crystal Palace F.C.: Crystal Palace Football Club is an English professional football club founded in 1905 at the famous Crystal Palace Exhibition building and during their early years they played at the FA Cup Final venue which was situated inside the historic Palace grounds.
Document 6: Southampton F.C.: Southampton Football Club is a professional association football club based in Southampton, Hampshire, England, which plays in the Premier League, the top tier of English football.
Document 7: George William Addison: Lieut-Colonel George William Addison (18 September 1849 – 8 November 1937) was an English soldier who played for the Royal Engineers in the 1872 and 1874 FA Cup Finals.
Document 8: 2017–18 Crystal Palace F.C. season: The 2017–18 season is Crystal Palace's fifth consecutive season in the Premier League (their longest ever spell in the top division of English football) and their 112th year in their history. This season, Crystal Palace participates in the Premier League, FA Cup and EFL Cup. Frank de Boer was appointed as manager of Palace before the season began, only to be sacked on 11 September 2017 after losing his first four Premier League games without scoring. Former England national team manager Roy Hodgson was confirmed to be his replacement the next day.
Document 9: George Walker (Puritan): George Walker (c.1581–1651) was an English clergyman, known for his strong Puritan views. He was imprisoned in 1638 by William Laud, Archbishop of Canterbury, an affair that was later raised against Laud at his trial. He became a member of the Westminster Assembly in 1643.
Document 10: Fulham F.C.: Fulham Football Club ( ) is a professional association football club based in Fulham, Greater London, England. Founded in 1879, they play in the Championship, the second tier of English football, having been relegated from the Premier League in 2013–14 after 13 consecutive seasons in the top flight. They are the oldest-established football team from London to have played in the Premier League.
Document 11: Crystal Palace L.F.C.: Crystal Palace Ladies Football Club is a football club based in south-east London and playing in the FA Women's Premier League Southern Division . The club, known as the "Eagles", branches off from Crystal Palace F.C., the men's equivalent. The ladies' team usually plays in the same kits as the men did in the previous season. The Ladies section offer female football from under-10s through to senior level, including an academy at The Priory School in Orpington.
Document 12: Crystal Palace F.C.: Crystal Palace Football Club is a professional football club based in Selhurst, London, that plays in the Premier League, the top tier of English football.
Document 13: 1905–06 Crystal Palace F.C. season: The idea of a club at Crystal Palace was first proposed in 1904 by The Crystal Palace Company. The proposal was rejected by the Football Association, who disliked the idea of the owners of the Cup Final venue also possessing a football club. However a separate company was formed the following year in order to establish the club under the chairmanship of Sydney Bourne, chosen due to his propensity in buying tickets to the Cup Final. Crystal Palace Football Club was formed on 10 September 1905 playing in the Aston Villa colours of claret and blue. The choice of colours was a result of the important role in the club's formation played by Edmund Goodman, an Aston Villa employee who was recommended to the fledgling club by the Villa chairman. Goodman organised the business side of the club and managed the team from 1907 to 1925. A former amateur player with Villa, Goodman had lost his right leg after an injury led to amputation.
Document 14: Selhurst Park: Selhurst Park is an association football stadium located in the London suburb of Selhurst in the Borough of Croydon. It is the current home ground of Crystal Palace Football Club playing in the Premier League. The stadium was designed by architect Archibald Leitch and opened in 1924. The stadium has hosted one international football match as well as games for the 1948 Summer Olympics and a number of other sports. Part of the stadium incorporates a branch of Sainsbury's. The stadium was shared by Charlton Athletic F.C. from 1985 until 1991 and then by Wimbledon F.C. from 1991 until 2003.
Document 15: George Walker (footballer, born 1877): George Walker (1877–1930) was an English footballer who played for Crystal Palace as a full back.
ground_truth: Crystal Palace Football Club