Between 1885 and 1918 its official name was The North West or Camborne Division of Cornwall, and it was sometimes referred to simply as North West Cornwall.
1885–1918: Part of the Sessional Division of Penwith East, and the civil parishes of Gwennap and St Agnes.
1918–1950: The Borough of Helston, the Urban Districts of Camborne, Hayle, Phillack, and Redruth, the Rural District of Redruth, in the Rural District of East Kerrier the parishes of Constantine, Mabe, and Perranarworthal, in the Rural District of Helston the parishes of Crowan and Wendron, and in the Rural District of Truro the parishes of Kea, Kenwyn Rural, Perranzabuloe, St Agnes, St Allen, and Tregavethan.
Another General Election was required to take place before the end of 1915. The political parties had been making preparations for an election to take place and by July 1914, the following candidates had been selected;
General Election 1939–40:
Another General Election was required to take place before the end of 1940. The political parties had been making preparations for an election to take place from 1939 and by the end of this year, the following candidates had been selected;