Labour Party of Northern Ireland ended in 1987.
National Democratic Party - Northern Ireland - ended in 1970.
Protestant Unionist Party ended in 1971.
Liberal Unionist Party ended in 1912.
UK Unionist Party ended in 2008.
United Ulster Unionist Party ended in 1984.
Ulster Popular Unionist Party ended in 1995.
Northern Railway of Ireland ended in 1876.
Senate of Northern Ireland ended in 1973.
Parliament of Northern Ireland ended in 1973.
HQ Northern Ireland ended in 2009.
Unity - Northern Ireland - ended in 1977.