Joseph Gaston Isabelle was a Liberal party

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...

 member of the Canadian House of Commons

Canadian House of Commons

The House of Commons of Canada is a component of the Parliament of Canada, along with the Sovereign and the Senate. The House of Commons is a democratically elected body, consisting of 308 members known as Members of Parliament...

. He was a physician by career.

Isabelle was educated at the University of Ottawa

University of Ottawa

The University of Ottawa is a bilingual, research-intensive, non-denominational, international university in Ottawa, Ontario. It is one of the oldest universities in Canada. It was originally established as the College of Bytown in 1848 by the Missionary Oblates of Mary Immaculate...

 and the Université de Montréal

Université de Montréal

The Université de Montréal is a public francophone research university in Montreal, Quebec, Canada. It comprises thirteen faculties, more than sixty departments and two affiliated schools: the École Polytechnique and HEC Montréal...

 and went on to practice in Hull

Hull, Quebec

Hull is the central and oldest part of the city of Gatineau, Quebec, Canada. It is located on the west bank of the Gatineau River and the north shore of the Ottawa River, directly opposite Ottawa. As part of the Canadian National Capital Region, it contains offices for twenty thousand...

 and Lucerne

Aylmer, Quebec

Aylmer is a former city in Quebec, Canada. It became a sector of the City of Gatineau on January 1, 2002. Located on the Ottawa River and Route 148 it is a part of the National Capital Region. The population in 2006 was 41 882 — approx. 16% of Gatineau...

. He was mayor of Lucerne from 1961 to 1965. He was first elected in the 1965 federal election

Canadian federal election, 1965

The Canadian federal election of 1965 was held on November 8 to elect members of the Canadian House of Commons of the 27th Parliament of Canada. The Liberal Party of Prime Minister Lester B. Pearson was re-elected with a larger number of seats in the House...

 at the Gatineau electoral district

Gatineau (electoral district)

Gatineau is a federal electoral district in Quebec, Canada, represented in the Canadian House of Commons from 1949 to 1988 and since 1997. Its population in 2006 was 108,742....

. In the 1968 federal election

Canadian federal election, 1968

The Canadian federal election of 1968 was held on June 25, 1968, to elect members of the Canadian House of Commons of the 28th Parliament of Canada...

, Isabelle campaigned in the Hull electoral district

Hull—Aylmer

Hull—Aylmer is a federal electoral district in Quebec, Canada, that has been represented in the Canadian House of Commons since 1917....

 where he was re-elected in successive elections until the 1984 general election

Canadian federal election, 1984

The Canadian federal election of 1984 was held on September 4 of that year to elect members of the Canadian House of Commons of the 33rd Parliament of Canada...

, at which point his riding was known as Hull—Aylmer.

Isabelle left federal politics in 1988 after successful re-elections in all successive campaigns. He served seven consecutive terms of office from the 27th

27th Canadian Parliament

The 27th Canadian Parliament was in session from January 18, 1966 until April 23, 1968. The membership was set by the 1965 federal election on November 8, 1965, and it changed only somewhat due to resignations and by-elections until it was dissolved prior to the 1968 election.It was controlled by a...

 through 33rd Canadian Parliament

33rd Canadian Parliament

The 33rd Canadian Parliament was in session from November 5, 1984 until October 1, 1988. The membership was set by the 1984 federal election on September 4, 1984, and it only changed slightly due to resignations and by-elections prior to being dissolved before the 1988 election.It was controlled...

s.

He married Madeleine Sara-Bournet in 1946.

Electoral record