Question: What is the birthyear of the last born player to cross the Old Firm divide twice?

full_context: Document 1: Tom Farquharson: Tom Farquharson (4 December 1899 – 24 December 1970) was an Irish footballer who played as a goalkeeper for Cardiff City between 1921 and 1934. A dual internationalist, he also played for both Ireland teams – the FAI XI and the IFA XI. In 1927, Farquharson was a member of the Cardiff City team that became the only non-English team to win the FA Cup. He played 445 English League games for Cardiff, which remained a club record until 1985.
Document 2: Paul Miller (footballer, born 1959): Paul Richard Miller (born 11 October 1959) is an English former footballer who played in the Football League for Tottenham Hotspur, Charlton Athletic, Watford, Bournemouth, Brentford and Swansea City. Miller's favoured position was centre back.
Document 3: 2010–11 Celtic F.C. season: The 2010–11 season was the 122nd season of competitive football by Celtic. New manager Neil Lennon made considerable changes to the Celtic team for the 2010-11 season. He sold Aiden McGeady for a then Scottish record £9.5 million along with captain Stephen McManus and fan favourite Artur Boruc. 13 other players also left the club, this gave Lennon enough funds to re-build for the new season. He looked to sign talented, young, cheap, relatively unknown players, from smaller leagues around the world. This paid off with players such as Gary Hooper, Beram Kayal and Emilio Izaguirre all having excellent seasons and earning many plaudits. Lennon also signed several experienced players on free transfers. Charlie Mulgrew, Joe Ledley, and Daniel Majstorović all went into the first team. In addition to these Lennon also signed five other players, including Fraser Forster on loan from Newcastle who became first choice 'keeper and helped set a new SPL record for most clean sheets.
Document 4: James Milner: James Philip Milner (born 4 January 1986) is an English professional footballer who plays for Premier League club Liverpool. A versatile player, he has been utilized in many different positions such as on the wing, in midfield and left back.
Document 5: Keadue Rovers F.C.: Keadue Rovers Football Club is a football club based in Keadue, County Donegal currently playing in the Ulster Senior League. Founded in 1896, Keadue play their soccer at Central Park. Nicknamed "The Gulls", Keadue are a well-respected junior football club in Ireland. The club's most famous past player is Packie Bonner, who signed for Celtic at the age of 17 from Keadue Rovers. Other famous sons to don the clubs famous candystripes were Dennis Bonner Galway United, Tony Boyle All Ireland winner with Donegal in 1992, Martin Ferry (formerly of Ayr United, currently Limavady United), Lee Boyle of Aston Villa and Mark Forker (former of Heart of Midlothian and currently at Institute). Other names synonymous with the club are its most successful manager, Manus McCole and Anthony "Dutch" Doherty. The club celebrated its centenary in 1996 with Celtic playing a game at Central Park.
Document 6: Reg Ryan: Reginald Alphonso Ryan (30 October 1925 – 13 February 1997), also referred to as Paddy Ryan, is a former Irish footballer who played for West Bromwich Albion, Derby County and Coventry City. Ryan was also a dual international, playing for both Ireland teams – the FAI XI and the IFA XI. He was the last player to represent both teams. Nicknamed "Rubberneck" due to his prodigious heading ability, he was more of a goal creator then a goalscorer.
Document 7: Tom Dunbar (footballer): Thomas Dunbar (18 August 1868 – 28 April 1908) was a Scottish association footballer who played for Celtic and Rangers. He is one of only two players to cross the Old Firm divide twice, the other being Kenny Miller.
Document 8: New Firm (Denmark): The Copenhagen Derby also called The New Firm is a Danish football rivalry between the two big teams, Brøndby IF and F.C. Copenhagen. The New Firm name is a play on the Old Firm rivalry that exists between the two Scottish football teams, Rangers and Celtic. The term "New Firm" is also used in Scotland to refer to two clubs from the east of Scotland, Aberdeen and Dundee United, due to their challenging the Old Firm's traditional dominance of the game in Scotland during the 1980s.
Document 9: Kenny Miller: Kenneth Miller (born 23 December 1979) is a Scottish professional footballer who plays as a striker for Scottish Premiership club Rangers. Miller is one of only five post-war players to have played for both Rangers and Celtic, and is only the second player to cross the divide twice, alongside Tom Dunbar. He is known as a versatile and pacy striker who is skilled with headers and can play as a supporting or centre-forward.
Document 10: Henrik Larsson: Henrik Edward Larsson (] ; born 20 September 1971) is a Swedish football coach and former professional player. He was known as a striker whose main attributes were his goal scoring prowess and on-field intelligence.
Document 11: Colin Douglas (footballer): Colin Francis Douglas (9 September 1962) is a former Scottish footballer who played as a centre forward and right back for Doncaster Rovers and Rotherham United. He shares the record of most appearances in all competitions for Doncaster with James Coppinger.
Document 12: Karim Benzema: Karim Mostafa Benzema (born 19 December 1987) is a French professional footballer who plays for Spanish club Real Madrid and the France national team as a striker. He has been described as an "immensely talented striker" who is "strong and powerful" and "a potent finisher from inside the box".
Document 13: Thomas Müller: Thomas Müller (] ; born 13 September 1989) is a German professional footballer who plays for and vice-captains Bayern Munich and the German national team. A versatile player, Müller plays as a midfielder or forward, and has been deployed in a variety of attacking roles – as an attacking midfielder, second striker, centre forward and on either wing. He has been praised for his positioning, teamwork and stamina, work-rate, and has shown consistency in both scoring and creating goals.
Document 14: Thomas Hooman: Thomas Charles Hooman (28 December 1850 – 22 September 1938) was a leading English association football player of the Victorian era. He played for Wanderers in the 1872 FA Cup Final and was also chosen to represent England on several occasions.
Document 15: Steven Milne: Steven Milne (born 5 May 1980) is a former Scottish footballer who played as a striker for Dundee, Forfar Athletic, Plymouth Argyle, St. Johnstone, Ross County and Arbroath. Milne received a runners-up medal in the 2003 Scottish Cup Final, where Dundee lost 1–0 to Rangers. He won the Scottish Challenge Cup in 2007 and the Scottish First Division in 2009 with St. Johnstone.
ground_truth: 1979