Question: What is the birthday of the Northern Ireland political party leader who was in charge for 28y ?

text: List of political parties in Northern Ireland
Party leaders
Party leaders serving 10 years or more are
Political parties in Northern Ireland lists political parties in Northern Ireland. The Northern Ireland Assembly is elected by single transferable vote and the composition of the Northern Ireland Executive is by power sharing determined by the D'Hondt system, among the members elected to the Assembly. Party affiliation is generally based on religious and ethnic background. Although Northern Ireland is a part of the United Kingdom, it has a quite distinct party system from the rest of the country, as the Labour Party and Liberal Democrats do not contest elections there (though the Liberal Democrats have links with the Alliance Party), and the Conservative Party has received only limited support in recent elections. Some parties, such as Sinn Féin and the Workers' Party, are organised on an all-Ireland basis. Others such as the Conservative Party are organised on an all-United Kingdom basis. There are many Northern Ireland-specific parties and these, on the whole, predominate. The distinction between unionist/loyalist, nationalist/republican and other is not always easy with some parties and individuals. Some have defined themselves less by their position on the Border Question than on other political issues. For example, the former Republican Labour Party/Social Democratic and Labour Party MP Gerry Fitt's career suggests he was first and foremost a socialist rather than a nationalist and he eventually left the SDLP claiming it had drifted from its founding intentions. Similarly the Workers' Party has its roots in the republican Official IRA but nowadays is considered to be a non-violent socialist and nationalist party. Several parties strive to be avowedly non-sectarian and would not consider themselves to be either unionist or nationalist.
Leader Years Party/Period Constituency
Ian Paisley 42y Protestant Unionist Party 1966-1971 Democratic Unionist Party 1971-2008 Bannside , North Antrim
Ruairí Ó Brádaigh 36y Sinn Féin 1970-1983 Republican Sinn Féin 1986-2009
Gerry Adams 35y Sinn Féin 1983-2018 West Belfast , Louth
William Norton 28y Irish Labour 1932-1960
Tomás Mac Giolla 26y Sinn Féin 1962-1970 Official Sinn Féin 1970-1977 Sinn Féin The Workers Party 1977-1982 Workers ' Party 1982-1988
Hugh Smyth 23y Progressive Unionist Party 1979-2002
John Hume 22y Social Democratic and Labour Party 1979-2001 Foyle
Albert McElroy 19y Ulster Liberal Party 1956-1975 ( ? )
Lord Craigavon 19y Ulster Unionist Party 1921-1940 Down , North Down
John Redmond 18y Irish Parliamentary Party 1900-1918 Waterford City
Lord Brookeborough 17y Ulster Unionist Party 1946-1963 Lisnaskea
James Molyneaux 16y Ulster Unionist Party 1979-1995 South Antrim , Lagan Valley
Joseph Devlin 16y Nationalist Party 1918-1934 Belfast Falls , Fermanagh and Tyrone , Belfast Central
Gerry Fitt 15y Republican Labour Party 1964-1970 Social Democratic and Labour Party 1970-1979 Belfast West , Belfast Dock
James Kilfedder 15y Ulster Popular Unionist Party 1980-1995 North Down
Margaret Buckley 13y Sinn Féin 1937-1950
Robert McCartney 13y UK Unionist Party 1995-2008 North Down
James McSparran 13y Nationalist Party 1945-1958 Mourne
Oliver Napier 12y Alliance Party 1972-1984
Thomas Joseph Campbell 11y Nationalist Party 1934-1945 Belfast Central