Mark MacGuigan

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The Honourable
Mark MacGuigan
17th Secretary of State for External Affairs
In office
March 3, 1980 – September 9, 1982
Prime Minister Pierre Trudeau
Preceded by Flora MacDonald
Succeeded by Allan MacEachen
Minister of Justice and Attorney General of Canada
In office
September 10, 1982 – June 29, 1984
Prime Minister Pierre Trudeau
Preceded by Jean Chrétien
Succeeded by Donald Johnston
Federal Court of Canada
(Appeals Division)
In office
June 29, 1984 – January 12, 1998 (death)
Appointed by Pierre Trudeau
Member of the Canadian Parliament
for Windsor-Walkerville
In office
June 25, 1968 – June 29, 1984
Preceded by Electoral District created
Succeeded by Howard McCurdy
Personal details
Born Mark Rudolph MacGuigan
(1931-02-17)February 17, 1931
Charlottetown, Prince Edward Island
Died January 12, 1998(1998-01-12) (aged 66)
Oklahoma City, Oklahoma
Nationality Canadian
Political party Liberal
Parents Mark Rudolph MacGuigan, Sr. (father)
Agnes Violet Trainor (mother)
Alma mater Saint Dunstan's University
The University of Toronto
Osgoode Hall Law School
Columbia University
Profession Lawyer
Member of Parliament

Mark Rudolph MacGuigan, PC (February 17, 1931 – January 12, 1998) was a Canadian academic and politician.

Born in Charlottetown, Prince Edward Island, the son of Mark Rudolph MacGuigan and Agnes Violet Trainor,[1] he was educated at Saint Dunstan's University (B.A.), the University of Toronto (M.A., Ph.D. (Philosophy)), Osgoode Hall Law School (LL.B.), and Columbia University (LL.M., J.S.D.) [2] He was a professor at Osgoode and the University of Toronto and was dean of law at the University of Windsor.

MacGuigan was elected as a Liberal Party candidate to the House of Commons of Canada in the 1968 general election. He was re-elected in 1972, 1974, 1979, and 1980.

In 1976, he took a turn at provincial politics and ran for the leadership of the Ontario Liberal Party. He lost to Stuart Smith at the leadership convention.

In 1980, he was appointed Secretary of State for External Affairs in the cabinet of Prime Minister Pierre Trudeau. He became Minister of Justice and Attorney General of Canada in 1982.

When Trudeau announced his retirement as Liberal leader and prime minister, MacGuigan ran to succeed him at the 1984 Liberal leadership convention. He placed fifth. He retired from politics following the convention, and became a judge on the federal Court of Appeal.

He died in Oklahoma City of liver cancer in 1998.

Further reading[edit]

  • P. Whitney Lackenbauer (ed.). An Inside Look at External Affairs during the Trudeau Years: The Memoirs of Mark MacGuigan. University of Calgary Press. ISBN 1-55238-076-9. 


  1. ^ Weeks, Blair (2002). Minding the House: A Biographical Guide to Prince Edward Island MLAs. Acorn Press. ISBN 1-894838-01-7. 
  2. ^ Hon. Justice Mark R. MacGuigan Memorial Scholarship, University of Prince Edward Island. Retrieved 7 July 2012.