Question: Eddie McAteer, was an Irish nationalist politician in which part of the United Kingdom in the north-east of the island of Ireland, variously described as a country, province or region?

Context articles: Eddie McAteer
Eugene Crean
Tim Healy (politician)
Laurence Ginnell
Irish Independence Party
William Lundon
Mick Murphy (Sinn Féin politician)
Andrew Kettle
Northern Ireland
Dear Old Ireland

Eddie McAteer (1914 – 28 March 1986) was an Irish nationalist politician in Northern Ireland.
Eugene Crean (1854–1939) was an Irish nationalist politician and MP in the House of Commons of the United Kingdom of Great Britain and Ireland and member of the Irish Parliamentary Party 1892–1910, for the All-for Ireland Party 1910–1918.
Timothy Michael Healy, KC (17 May 1855 – 26 March 1931) was an Irish nationalist politician, journalist, author, barrister and one of the most controversial Irish Members of Parliament (MPs) in the House of Commons of the United Kingdom of Great Britain and Ireland.
 His political career began in the 1880s under Charles Stewart Parnell's leadership of the Irish Parliamentary Party (IPP), and continued into the 1920s, when he was the first Governor-General of the Irish Free State.
Laurence Ginnell (baptised 9 April 1852 – 17 April 1923) was an Irish nationalist politician, lawyer and Member of Parliament (MP) of the House of Commons of the United Kingdom of Great Britain and Ireland as member of the Irish Parliamentary Party for Westmeath North at the 1906 UK general election.
 From 1910 he sat as an Independent Nationalist and at the 1918 general election he was elected for Sinn Féin.
The Irish Independence Party (IIP) was a nationalist political party in Northern Ireland, founded in October 1977 by Frank McManus (former Unity MP for Fermanagh & South Tyrone between 1970 and 1974) and Fergus McAteer (son of Eddie McAteer, who had been leader of the Nationalist Party between 1953 and 1969).
 The party was effectively a merger of Unity and the Nationalist Party, as the bulk of activists and councillors from the two movements joined IIP.
 However several independent councillors also joined the party.
 It was boosted in the late 1970s by the defection of a prominent Protestant Larne Social Democratic and Labour Party (SDLP) councillor, John Turnley, later the party chairman, who was killed in 1980 in Carnlough, County Antrim, by an attack claimed by the Ulster Defence Association.
William Lundon (1839 – 24 March 1909) was an Irish nationalist politician and MP in the House of Commons of the United Kingdom of Great Britain and Ireland and as member of the Irish Parliamentary Party represented East Limerick when elected to the 27th Parliament of the United Kingdom at the 1900 general election and re-elected to the 28th Parliament at the 1906 general election.
Michael Murphy (born 6 February 1942) is an Irish nationalist politician in Northern Ireland.
 Active in Irish republicanism after getting involved with the Northern Ireland Civil Rights Association of the 1960s, he worked as a publican.
 In 1996 he was elected as a member of the Northern Ireland Forum for Sinn Féin in South Down.
 Murphy was the unsuccessful Sinn Féin candidate for South Down in the 1997 election to the United Kingdom Parliament; a few months later he was elected to Newry and Mourne District Council.
Andrew Joseph Kettle (1833–1916) was a leading Irish nationalist politician, progressive farmer, agrarian agitator and founding member of the Irish Land League, known as 'the right-hand man' of Charles Stewart Parnell.
 He was also a much admired old friend of the nationalist politician, Frank Hugh O'Donnell, and the poet and novelist Katharine Tynan.
Northern Ireland (Irish: "Tuaisceart Éireann" ] ; Ulster-Scots: "Norlin Airlann ") is a part of the United Kingdom in the north-east of the island of Ireland, variously described as a country, province or region.
 Northern Ireland shares a border to the south and west with the Republic of Ireland.
 In 2011, its population was 1,810,863, constituting about 30% of the island's total population and about 3% of the UK's population.
 Established by the Northern Ireland Act 1998 as part of the Good Friday Agreement, the Northern Ireland Assembly holds responsibility for a range of devolved policy matters, while other areas are reserved for the British government.
 Northern Ireland co-operates with the Republic of Ireland in some areas, and the Agreement granted the Republic the ability to "put forward views and proposals" with "determined efforts to resolve disagreements between the two governments".
Dear Old Ireland (also known as "Ireland Boys Hurrah!")
 is an Irish folk song of the nineteenth century.
 Its lyrics were written by nationalist politician and journalist Timothy Daniel Sullivan, who also wrote "God Save Ireland".
 First published in 1861 in Sullivan's collection "Songs of the Backwoods", its nostalgic lyrics are about Irish emigrants living in Canada.
 This was an imagined setting, however, as Sullivan himself never lived in Canada, he did travel in North America fundraising for Irish nationalist causes.
 The tune accompanying it is a lively one in major chords, and this could easily be a drinking song.
 Part of the melody from this also was used in Eddie Cochran's 1950s song "Cherished Memories".