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.
Don’t just read it —
keep it.
Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.
- E-book
- Audio
- Video
Instant download · yours to keep · every purchase keeps this site free
Important facts
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
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.
Portrait: Wikimedia Commons · author & licence
Page generated 2026-09-27 05:07 UTC