Thomas McMillan was a Canadian

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 politician and farmer.

McMillan ran and was narrowly defeated as a Laurier Liberal candidate in the 1917 federal election

Canadian federal election, 1917

The 1917 Canadian federal election was held on December 17, 1917, to elect members of the Canadian House of Commons of the 13th Parliament of Canada. Described by historian Michael Bliss as the "most bitter election in Canadian history", it was fought mainly over the issue of conscription...

, losing by less than 600 votes. In 1919, he ran for the leadership of the Ontario Liberal Party

Ontario Liberal Party

The Ontario Liberal Party is a provincial political party in the province of Ontario, Canada. It has formed the Government of Ontario since the provincial election of 2003. The party is ideologically aligned with the Liberal Party of Canada but the two parties are organizationally independent and...

, but received only eight votes in the leadership convention

Ontario Liberal leadership conventions

Ballot-by-ballot results of leadership elections in the Ontario Liberal Party, a political party in the Province of Ontario, Canada.Note: Before 1919, the leaders of the Ontario Liberal Party were chosen by the party's elected Members of the Legislative Assembly...

.

He ran as a Liberal

Liberal Party of Canada

The Liberal Party of Canada , colloquially known as the Grits, is the oldest federally registered party in Canada. In the conventional political spectrum, the party sits between the centre and the centre-left. Historically the Liberal Party has positioned itself to the left of the Conservative...

 candidate in the 1921 federal election

Canadian federal election, 1921

The Canadian federal election of 1921 was held on December 6, 1921 to elect members of the Canadian House of Commons of the 14th Parliament of Canada. The Union government that had governed Canada through the First World War was defeated, and replaced by a Liberal government under the young leader...

, but lost by 44 votes. He was elected the Member of Parliament

Member of Parliament

A Member of Parliament is a representative of the voters to a :parliament. In many countries with bicameral parliaments, the term applies specifically to members of the lower house, as upper houses often have a different title, such as senate, and thus also have different titles for its members,...

 for Huron South in the 1925 election

Canadian federal election, 1925

The Canadian federal election of 1925 was held on October 29 to elect members of the Canadian House of Commons of the 15th Parliament of Canada. Prime Minister William Lyon Mackenzie King's Liberal Party formed a minority government. This precipitated the "King-Byng Affair".The Liberals under...

, and re-elected in the 1926

Canadian federal election, 1926

The Canadian federal election of 1926 was held on September 14 to elect members of the Canadian House of Commons of the 16th Parliament of Canada. The election was called following an event known as the King-Byng Affair...

 and 1930 elections

Canadian federal election, 1930

The Canadian federal election of 1930 was held on July 28, 1930 to elect members of the Canadian House of Commons of the 17th Parliament of Canada...

.

He died in office in 1932.