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Seabury C. Mastick

1871 – 1969

American lawyer and politician

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About Seabury C. Mastick

Lived 1871 – 1969 (aged 98). Seabury C. Mastick was an American lawyer and politician.

Seabury Cone Mastick (July 19, 1871 – August 21, 1969) was an American lawyer and politician from New York.

Life Seabury Cone was born in San Francisco on July 19, 1871, the son of William Henry Cone and Laura Jeanette (Mastick) Cone. After the death of his parents, he was adopted by his uncle Seabury L. Mastick and his wife Mary Wood Mastick. He attended Hopkins Academy in Oakland, California, and graduated A.B. from Oberlin College in 1891. He graduated LL.B. from University of California Hastings School of Law in 1894, and A.M. from Oberlin College the same year. He was admitted to the bar, and practiced law in San Francisco until 1896.

On October 1, 1896, he married Agnes Eliza Warner (1872–1963), a fellow student at Oberlin from Arlington, New York. The couple settled in Pleasantville, and Mastick practiced law in New York City, specialising in patent law. From 1912 to 1917, he studied chemistry at Columbia University, and in 1916 published Chemical Patents.

From 1917 to 1920, he served in the United States Navy, eventually becoming a lieutenant commander. In the Navy, he developed high velocity star shell artillery ammunition used for illuminating purposes, for which he was awarded the Citation Star. In 1923, he was awarded also the Conspicuous Service Cross. Afterwards he engaged in the manufacture of chemicals, and was President of Westvaco Chlorine Products from 1922 to 1927.

On August 21, 1940, he was appointed as Supervisor of the Town of Mount Pleasant.

Pacific University conferred the honorary degree of D.Sc. on him in 1952; and Wagner College the honorary degree of LL.D. in 1953.

His wife Agnes died on November 8, 1963, and he remarried to Kathrin Cawein (1895–1996) on April 3, 1964.

He died on August 21, 1969, in Manchester, while on vacation in England.

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Important facts

Birth century
Occupation
Nationality
Education
Columbia University, University of California College of the Law, San Francisco, Oberlin College
Positions held
Member of the State Senate of New York, Member of the New York State Assembly
Also known as
Seabury Cone Mastick, Seabury Mastick, Seabury Cone

People in Seabury C. Mastick's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Seabury C. Mastick's

Frequently asked questions

Who was Seabury C. Mastick?

American lawyer and politician (1871–1969)

When was Seabury C. Mastick born?

Seabury C. Mastick was born on 19 July 1871 in San Francisco.

When did Seabury C. Mastick die?

Seabury C. Mastick died on 21 August 1969 in Manchester.

What was Seabury C. Mastick's occupation?

Seabury C. Mastick was a lawyer and politician.

What nationality was Seabury C. Mastick?

Seabury C. Mastick was American.

Sources & further reading

· Wikipedia: Seabury C. Mastick

· Wikidata: Q16006610

· DBpedia: Seabury C. Mastick

Cite this page

APA: Biography.guide. (2026). Seabury C. Mastick. https://biography.guide/seabury-c-mastick/

MLA: "Seabury C. Mastick." Biography.guide, https://biography.guide/seabury-c-mastick/.

Chicago: "Seabury C. Mastick." Biography.guide. https://biography.guide/seabury-c-mastick/.

Data last updated: 2026-09-23 · Spot an error? Report a correction.

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