Archibald McKellar was briefly leader of Canada's Ontario Liberal Party from 1867 to 1868 and, unofficially, the first Leader of the Opposition in Ontario's new provincial legislature and went on to serve as Commissioner of Public Works in Ontario Premier Oliver Mowat's first government.
Ottawa West—Nepean is a federal electoral district in Ontario, Canada, that has been represented in the House of Commons of Canada since 1997.
Sir Richard William Scott, was a Canadian politician and cabinet minister.
Nepean—Carleton was a federal electoral district in Ontario, Canada that was represented in the House of Commons from 1979 to 1988, and again from 1997 to 2015.
Carleton is a federal electoral district in Ontario, Canada, represented in the House of Commons of Canada from 1867 to 1968 and since 2015. It was represented in the Legislative Assembly of Upper Canada from 1821 to 1840 and in the Legislative Assembly of the Province of Canada from 1841 until 1866. It has been represented by Pierre Poilievre, the current Leader of the Opposition, since its creation in 2015.
Waterloo South was a federal electoral district and a provincial electoral district in Canada.
Robert Lyon was a lawyer, politician and judge in the County of Carleton in eastern Ontario. He was mayor of Ottawa in 1867 and a Liberal member of the Legislative Assembly of Ontario from 1867 to 1871.
George William Monk was a member of the Legislative Assembly of Ontario who represented the Ottawa area riding of Carleton from 1871 to 1894.
Christopher Finlay Fraser was an Ontario lawyer and political figure. He represented Grenville South in the Legislative Assembly of Ontario from 1872 to 1879 and Brockville from 1879 to 1894.
Abraham Code was an Ontario businessman and political figure. He represented Lanark South in the Legislative Assembly of Ontario from 1869 to 1879.
Halton was a provincial electoral district in Central Ontario, Canada. It elected one member to the Legislative Assembly of Ontario.
Durham West was an electoral riding in Ontario, Canada. It was created in 1867 at the time of confederation. It contained the towns of Pickering and Ajax.
Niagara Centre is a provincial electoral district in Ontario, Canada, represented from 1867 until 1977 and again since 2007 in the Legislative Assembly of Ontario. Its population in 2006 was 112,875.
Toronto East, also known as East Toronto, was a provincial riding that was created in Toronto, Ontario when the country of Canada was established in 1867. At the time Toronto was divided into two ridings, East Toronto and West Toronto. In 1886, these ridings were dissolved and a combined riding of the entire city was created which elected three members. In 1894 this riding was split into four parts of which Toronto East was one. It occupied the eastern part of the old city of Toronto. From 1908 to 1914 it elected two members to the legislature.
Toronto West, also known as West Toronto, was a provincial riding that was created in Toronto, Ontario when the country of Canada was established in 1867. At the time Toronto was divided into two ridings, West Toronto and East Toronto. In 1886, these ridings were dissolved and a combined riding of the entire city was created which elected three members. In 1894 this riding was split into four parts of which Toronto West was one. It occupied the western part of the old city of Toronto. From 1908 to 1914 it elected two members to the legislature.
Carleton is a provincial riding in Ontario, Canada. It was created in 1867 at the time of confederation and lasted until provincial redistribution in 1996. In the 1999 provincial election it was redistributed into Nepean—Carleton and Lanark—Carleton. In 2007 it was abolished into Carleton—Mississippi Mills and Lanark—Frontenac—Lennox and Addington.
Grey North was an electoral riding in Ontario, Canada. It was created in 1867 at the time of confederation. It was renamed and redistributed in 1967 as the riding of Grey-Bruce before being abolished in 1986 before the 1987 election. The riding represented Grey County.
Dundas was an electoral riding in Ontario, Canada. It was created in 1867 at the time of confederation and was abolished in 1933 before the 1934 election. It was redistributed into the riding of Grenville-Dundas.
Peterborough East was an electoral riding in Ontario, Canada. It was created in 1867 at the time of confederation and was abolished in 1926. In 1926, Peterborough East and Peterborough West were redistributed into two ridings Peterborough City and Peterborough County. This lasted until 1934 when both ridings were merged into one riding called Peterborough.
Peterborough West was an electoral riding in Ontario, Canada. It was created in 1867 at the time of confederation and was abolished in 1926. In 1926, Peterborough West and Peterborough East were redistributed into two ridings Peterborough City and Peterborough County. This lasted until 1934 when both ridings were merged into one riding called Peterborough.
Ontario electoral district 
