Michael Cook
Australian diplomat and former Australian ambassador to the United States of America
About Michael Cook
Lived 1931 – 2017 (aged 85–86). Michael Cook was a diplomat.
Michael John Cook (28 October 1931 – 18 June 2017) was an Australian diplomat.
He was the director-general of the Office of National Assessments from 1981 to 1989 before becoming the Ambassador of Australia to the United States from 1989 to 1993.
The family settled in Melbourne in 1937. He attended Geelong Grammar School and was awarded a scholarship to attend Trinity College at the University of Melbourne where he studied law.
While working in London, Cook was convinced by Australian prime minister Malcolm Fraser to return to Australia in 1979 to become his chief executive officer in his private office.
After working for Fraser from 1979 to 1981, Cook became the Director-General of the Office of National Assessments. Serving in this role from 1981 to 1989, Cook became the longest serving director-general of ONA.
One of Cook's final duties in this role was opening an inquiry into whether the KGB had infiltrated the Australian Security Intelligence Organisation. The findings of this enquiry have never been released.
After concluding his role as the ambassador of Australia to the United States in 1993, Cook relocated to London where he was the chairman of the Menzies Centre for Australian Studies at King's College London from 1997 to 2011.
After the couple divorced, Ibbitson relocated to the United States and married legal counsel to the National Gallery of Art Phillip C. Jessup Jr.
Cook married Catriona Juliet Matheson, a law academic, on 10 July 1970, and they had a son and a daughter.
Cook's daughter Genevieve Cook commenced a two-year relationship with Barack Obama in 1983.
For his public service, Cook was appointed as an Officer of the Order of Australia (AO) in the 1990 Australia Day Honours.
Cook died in London on 18 June 2017 at the age of 85. A private funeral service was held for Cook but relatives, friends and neighbours were invited to a public gathering at his home on 6 July 2017 to celebrate his life. Australian historian Frank Bongiorno described the announcement as "really puzzling".
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Important facts
People in Michael Cook's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Michael Cook's
Frequently asked questions
Who was Michael Cook?
Australian diplomat and former Australian ambassador to the United States of America
When was Michael Cook born?
Michael Cook was born on 28 October 1931.
When did Michael Cook die?
Michael Cook died in 2017.
What was Michael Cook's occupation?
Michael Cook was a diplomat.
Sources & further reading
· DBpedia: Michael Cook (diplomat)
Cite this page
APA: Biography.guide. (2026). Michael Cook. https://biography.guide/michael-cook-diplomat/
MLA: "Michael Cook." Biography.guide, https://biography.guide/michael-cook-diplomat/.
Chicago: "Michael Cook." Biography.guide. https://biography.guide/michael-cook-diplomat/.
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