It returned one Member of Parliament (MP) to the House of Commons of the United Kingdom from 1918 to 1922, using the first past the post electoral system.
[1] For the division of Duncairn, it recommended a definition of:[2] This was adopted under the Redistribution of Seats (Ireland) Act 1918.
Under the Government of Ireland Act 1920 its area was again part of the Belfast North constituency, with effect at the 1922 general election.
[3] His chief opponent was Major William Hamilton Davey, recently returned from France following the armistice.
A barrister in civilian life, Major Davey stood for Home Rule and retained his deposit.