Background
Spencer was born in York County, New Brunswick, to Amelia Caroline (née Price) and William Spencer, and raised at Bloomfield Ridge, Stanley Parish.
Spencer was born in York County, New Brunswick, to Amelia Caroline (née Price) and William Spencer, and raised at Bloomfield Ridge, Stanley Parish.
Nelson Spencer was an Orangeman, and in 1910 belonged to Carnduff, Saskatchewan, Loyal Orange Lodge Number.1561 where he served as the County Master for that jurisdiction. Later he transferred to "Medicine Hat" L.O.L. 1549. Spencer was elected to the Alberta Legislature in the 1913 Alberta general election.
He defeated Liberal cabinet minister Charles R. Mitchell in an upset victory by 10 votes.
Mitchell would be the only cabinet minister defeated in that election. Spencer would be acclaimed in the 1917 Alberta general election under section 38 of the Elections Acting that stipulates an incumbent member involved in active overseas duty with the Canadian Forces in World War I would be automatically returned to his district without being contested.
Spencer retired from the Legislature after two terms in office. Spencer belonged to the 21st Alberta Hussars prior to the Great War of 1914–1919.
During the war he was given command of the newly created 175th "Medicine Hat" Battalion and appointed to the rank of lieutenant-colonel.
This unit was later broken up as its members were required to reinforce other units at the front. He commanded the 31st "Alberta" Battalion from October 6, 1918, to December 1, 1918. Spencer ran for a seat in the Canadian House of Commons as the Conservative candidate in a by-election in the Medicine Hat federal electoral district held after the death of Arthur Lewis Sifton.
Spencer was badly defeated in a landslide by Robert Gardiner.
After his electoral defeat, Spencer moved to British Columbia and ran in the 1928 British Columbia general election. He was elected in the riding of Vancouver City and spent one term in office for the British Columbia Conservative Party.
Spencer later ran as an independent for Mayor of Vancouver after losing the Non-partisan Association nomination in 1937. Spencer was married to Martha Alberta Kennedy (15 June 1878-1821 June 1958).
He died in Vancouver, British Columbia, Canada at the age of 66, and is interred at Ocean View Burial Park in Burnaby, British Columbia.
Spencer first served in municipal politics as a Tory party Mayor of Medicine Hat, Alberta.
