About Leighton McCarthy
Lived 1869 – 1952 (aged 82). Leighton McCarthy was a Canadian politician, diplomat, lawyer and ambassador.
Leighton Goldie McCarthy (15 December 1869 – 3 October 1952) was a Canadian lawyer, politician, businessman and diplomat.
Life and career Born in Walkerton, Ontario, McCarthy was called to the Ontario Bar in 1892. He was elected to the House of Commons of Canada in 1898 as an independent representing the riding of Simcoe North, following the death of the incumbent, his father Dalton McCarthy, in a carriage accident. He was re-elected in 1900 and 1904 but was defeated in 1911, when he ran as a Liberal.
In 1928, McCarthy became president of the Canada Life Assurance Company. In 1941, he was appointed to the Queen's Privy Council for Canada.
From 1941 to 1944, McCarthy served as Canada's top diplomatic representative in Washington, D.C., and he became the first Canadian ambassador to the United States (previously, the position was called Envoy Extraordinary and Minister Plenipotentiary). McCarthy was a lawyer before and after his political and diplomatic appointment but ended his practice in 1946.
McCarthy moved to Toronto and built a house at 45 Walmer Road in 1932, and he died here in 1952. McCarthy bequeathed his home to the University of Toronto. Since 1953, the building has housed the university's Institute of Child Study.
Archives There is a Leighton G. McCarthy and family fonds at Library and Archives Canada. Archival reference number is R4172.
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Important facts
People in Leighton McCarthy's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Leighton McCarthy's
Frequently asked questions
Who was Leighton McCarthy?
Canadian politician (1869-1952)
When was Leighton McCarthy born?
Leighton McCarthy was born on 15 December 1869 in Walkerton.
When did Leighton McCarthy die?
Leighton McCarthy died on 3 October 1952 in Toronto.
What was Leighton McCarthy's occupation?
Leighton McCarthy was a politician, diplomat, lawyer and ambassador.
What nationality was Leighton McCarthy?
Leighton McCarthy was Canadian.
Sources & further reading
· Wikipedia: Leighton McCarthy
Cite this page
APA: Biography.guide. (2026). Leighton McCarthy. https://biography.guide/leighton-mccarthy/
MLA: "Leighton McCarthy." Biography.guide, https://biography.guide/leighton-mccarthy/.
Chicago: "Leighton McCarthy." Biography.guide. https://biography.guide/leighton-mccarthy/.
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