Parliament of Northern Ireland was created in 1921.
Down - Northern Ireland Parliament constituency - was created in 1921.
Mourne - Northern Ireland Parliament constituency - was created in 1929.
Iveagh - Northern Ireland Parliament constituency - was created in 1929.
Enniskillen - Northern Ireland Parliament constituency - was created in 1929.
Bangor - Northern Ireland Parliament constituency - was created in 1969.
Larkfield - Northern Ireland Parliament constituency - was created in 1969.
Londonderry - Northern Ireland Parliament constituency - was created in 1921.
Parliament of Southern Ireland was created in 1920.
Mid Down - Northern Ireland Parliament constituency - was created in 1929.
West Tyrone - Northern Ireland Parliament constituency - was created in 1929.
Antrim Borough - Northern Ireland Parliament constituency - was created in 1929.