The electorate was formed for the 1861 election and existed until 1881.

Formed specifically for the 1946 election, the Mauritanian Entente was neither well organized nor mass based.

Knight joined the newly formed Canadian Action Party for the 1997 federal election.

The electorate was formed for the 1875-76 election, which was held on 27 December 1875 in this electorate.

It was formed for the 2008 general election and was composed of:

The Linwood electorate was formed for the 1887 election, which determined the composition of the 10th Parliament.

The electorate was formed for the 1928 general election, and was only ever held by the Labour Party.

The Halswell electorate was formed for the 1890 election, which determined the composition of the 11th Parliament.

Several coalitions were formed or continued for the election:

The electorate was formed for the 1860-61 general election.