Background
Lamoreux was born in Clockville in Madison County, New York on April 22, 1824.
Lamoreux was born in Clockville in Madison County, New York on April 22, 1824.
He was the brother of Silas West. Lamoreux. He received a common school education and became a farmer. He came to Wisconsin in 1851 and settled at Stockton in Portage County.
Lamoreux served as chairman of Town of Stockton board of supervisors several times.
Indeed, in the first town meeting held in 1855 he was elected town chair without opposition, as well as justice of the peace. He was appointed undersheriff of Portage County in 1858, and deputy United States marshal in 1861.
Lamoreux was appointed district attorney of Portage County in 1862 (although there is nothing in the record to indicate that he was an attorney ), and elected to the same position at the subsequent general election. During the American Civil War he was appointed as a clerk in the War Department in 1863, appointed a special land agent in 1864, and again elected district attorney of Portage County in 1870.
In 1871, he was elected to the Assembly, receiving 727 votes to 658 for Republican John Phillips (Republican incumbent Thomas McDill was not a candidate for re-election).
Oliver was appointed to the standing committee on town and city organization. Nonetheless, official Wisconsin histories list him simply as "Conservative". Neither brother was a candidate for re-election in 1872.
Oliver was succeeded by Republican David R. Clements.
He died May 18, 1891 in Plover.
In 1880, Lamoreux was a member of the Portage County Board of Immigration.