The seat covered Miramar, Mākara, Porirua, the Kāpiti Coast and the Horowhenua District.
He served until the dissolution of Parliament in 1855[1] and (unsuccessfully) contested the City of Wellington electorate instead.
[2] The ensuing 1858 by-election was won by Alfred Brandon, who served until the dissolution of Parliament in 1860.
[6] Brandon was again successful and received 208 votes versus 141 for Gillon, with Wallace a distant last.
[7] Brandon won the 1879 election and at the end of the parliamentary term in 1881, he retired from politics,[3] and the Wellington Country electorate was abolished.