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Robert H. Thayer

1901 – 1984

American diplomat

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About Robert H. Thayer

Lived 1901 – 1984 (aged 82). Robert H. Thayer was an American lawyer and diplomat.

Robert Helyer Thayer (September 22, 1901 − January 26, 1984) was an American lawyer, naval officer and diplomat.

Early life Thayer was born in Southborough, Massachusetts, the son of Rev. William Greenough Thayer (1863−1934), headmaster of St. Mark's School from 1894−1930, and Violet Otis Thayer (1871−1962) of the Boston Brahmin Otis family. His elder brother, Sigourney Thayer (1896−1944), was a theatrical producer, aviator and poet.

Career After graduating from Law School, Thayer began practicing law in New York City under Gen. William Joseph Donovan. During his term, Soviet troops from Timișoara entered Hungary through the Romanian city of Oradea. In February 1957, he wrote to then Secretary of State John Foster Dulles stating:

"The Romanian Government is as usual straddling the fence with its customary skill. It is following Soviet instructions and its own inclination to keep its people from becoming too keen on us by attacking us publicly from every angle, and at the same time is keeping the door open for such economic and cultural advantages as it may glean at an appropriate moment." Thayer was married to Virginia Pratt (1905−1979). She was the daughter of lawyer, financier and philanthropist John Teele Pratt and Ruth Baker Pratt, the first U.S. Congresswoman from New York State, Her brother, Edwin H. Baker Pratt, was the headmaster of Buckingham Browne & Nichols, and her sister, Phyllis Pratt, was married to Paul Nitze, the Secretary of the Navy and Deputy Secretary of Defense under President Lyndon B. Johnson. Together, they were the parents of three children: Stephen Badger Thayer Sally Sears Thayer (d. 2001), a 1955 debutante who became a Broadway and Off-Broadway producer.

Thayer died of leukemia at Georgetown University Hospital in Washington, D.C., on January 26, 1984, and is buried at Southborough Rural Cemetery.

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Important facts

Birth century
Occupation
Nationality
Education
Harvard University, St. Mark's School, Amherst College, Harvard Law School
Positions held
United States Ambassador to Romania
Also known as
Robert Helyer Thayer

Family & relationships

Parent
William Greenough Thayer

People in Robert H. Thayer's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Robert H. Thayer's

Frequently asked questions

Who was Robert H. Thayer?

American diplomat (1901–1984)

When was Robert H. Thayer born?

Robert H. Thayer was born on 22 September 1901 in Southborough.

When did Robert H. Thayer die?

Robert H. Thayer died on 26 January 1984 in Washington, D.C..

What was Robert H. Thayer's occupation?

Robert H. Thayer was a lawyer and diplomat.

What nationality was Robert H. Thayer?

Robert H. Thayer was American.

Sources & further reading

· Wikipedia: Robert H. Thayer

· Wikidata: Q7345117

· DBpedia: Robert H. Thayer

Cite this page

APA: Biography.guide. (2026). Robert H. Thayer. https://biography.guide/robert-h-thayer/

MLA: "Robert H. Thayer." Biography.guide, https://biography.guide/robert-h-thayer/.

Chicago: "Robert H. Thayer." Biography.guide. https://biography.guide/robert-h-thayer/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

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