Question: What is the profession of the man born on January 4th, 1986 who shares the name of the labour candidate who won the Leeds South East election in 1929?

Context articles: Leeds South East (UK Parliament constituency)
Leeds (provincial electoral district)
Dundee East by-election, 1952
Christchurch East by-election, 1943
Leeds South East by-election, 1952
James Milner
Leeds South East by-election, 1929
Wyndham Davies
Barry Seal (politician)
Leeds South by-election, 1963

Leeds South East was a borough constituency in the city of Leeds in West Yorkshire.
 It returned one Member of Parliament to the House of Commons of the Parliament of the United Kingdom.
Leeds was an electoral riding in Ontario, Canada.
 It was created in 1886 from Leeds South and Leeds North and Grenville North ridings and was abolished in 1986 before the 1987 election.
The Dundee East by-election was held on 17 July 1952 due to the death in a road accident of the incumbent Labour MP, Thomas Cook.
 It was won by the Labour candidate George Thomson.
 The Scottish National Party unsuccessful candidate, Donald James Stewart, would later be the SNP's first MP elected at a General Election when he won the Western Isles seat at the 1970 general election.
The 1943 Christchurch East by-election held on 6 February was caused by the death of Tim Armstrong during the term of the 26th New Zealand Parliament.
 The by-election in the Christchurch East electorate was contested by five candidates, including representatives from the Labour Party, the Labour breakaway party Democratic Labour Party and the National Party.
 The election was won by the Labour candidate, Mabel Howard, and started her long parliamentary career, which included her becoming the first female cabinet minister in 1947.
The 1952 Leeds South East by-election was held on 7 February 1952.
 It was held due to the elevation to a hereditary peerage of the incumbent Labour MP, James Milner.
 It was retained by the Labour candidate, Denis Healey.
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.
The Leeds South East by-election of 1929 was held on 1 August 1929.
 The by-election was held due to the resignation of the incumbent Labour MP, Henry Herman Slesser.
 It was won by the Labour candidate James Milner.
Wyndham Roy Davies (3 June 1926 – 4 December 1984) was a British Conservative Party politician.
 Against the national trend, he was elected Member of Parliament (MP) for Birmingham Perry Barr at the 1964 general election, gaining the seat from Labour at a time when Labour was coming to power after thirteen years of Conservative rule.
 However, Davies served for only 17 months, losing his seat to the Labour candidate Christopher Price at the 1966 general election.
Barry Seal (born 28 October 1937) is a British Labour Party politician.
 He was Member of the European Parliament (MEP) for the single-member seat of Yorkshire West from 1979 to 1999.
 He stood unsuccessfully for election to the new multi-member seat of Yorkshire and the Humber in the 1999 European elections.
 Seal also stood for selection as Labour candidate for the Bradford North constituency in the 1987 election, receiving 12 votes and coming second to Pat Wall who went on to win the election for Labour.
The 1963 Leeds South by-election was held on 20 June 1963.
 It was held due to the death of the incumbent MP and leader of the Labour Party, Hugh Gaitskell.
 The by-election was won by the Labour candidate, Merlyn Rees who would later become a cabinet minister.