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Parliamentary constituency in the United Kingdom, 1885–1922
West Down was a UK Parliament constituency in Ireland which returned one Member of Parliament from 1885 to 1922, using the first past the post electoral system.
Boundaries and Boundary Changes
This county constituency was first created in 1885 from the western part of Down. There was a boundary change altering this division in 1918, when the new Mid Down constituency was created, and West Down was redefined.
1885–1918: The baronies of Lower Iveagh, Lower Half, and Lower Iveagh, Upper Half, and that part of the barony of Iveagh Upper, Upper Half lying within the parishes of Aghaderg, Annaclone and Seapatrick.'.
1918–1922: The rural district of Moira; the part of the rural district of Banbridge which is not included in the East Down constituency; and the urban districts of Banbridge and Dromore.'.
Maps showing the component units of the constituency can be seen here.
The constituency was strongly unionist in 1918, when Sinn Féin only polled 1,725 votes. Two subsequent by-elections produced unopposed returns for the Unionist candidates.
The First Dáil
Sinn Féin contested the general election of 1918 on the platform that instead of taking up any seats they won in the United Kingdom Parliament, they would establish a revolutionary assembly in Dublin. In republican theory, every MP elected in Ireland was a potential Deputy to this assembly. In practice, only the Sinn Féin members accepted the offer.
The revolutionary First Dáil assembled on 21 January 1919 and last met on 10 May 1921. The First Dáil, according to a resolution passed on 10 May 1921, was formally dissolved on the assembling of the Second Dáil. This took place on 16 August 1921.