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Erastus F. Post

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Adapted from the English Wikipedia article Erastus F. Post, available under CC BY-SA 4.0Updated 11 August 2025
Erastus Foster Post
BornError: Invalid birth date for calculating age
Quogue, New York, U.S.
Died30 March 1937(1937-03-30) (aged 77)
Near Richmond, Virginia, U.S.
Occupation(s)Civil engineer, politician, banking executive
Years active1880s–1937
Known forNew York State Assembly member (1896–1898), president of Riverhead Savings Bank

Erastus Foster Post (July 3, 1859 – March 30, 1937) was a prominent American civil engineer, political figure, and banking executive based in New York.

Early life and education

Born on July 3, 1859, in Quogue, New York, Post was the son of George Oliver Post, a farmer and politician, and Harriet Foster. He pursued his education at Bridgehampton Academy before attending the scientific department of Williston Seminary in Massachusetts, from which he graduated in 1880. After completing his studies, he returned to Quogue where he engaged in surveying, civil engineering, and managing agricultural operations. In 1886, he received an appointment as Commissioner of Highways and secured election to the position the following year.

Career

Post entered the political arena in 1895 when he was elected as a Republican representative for Suffolk County's 1st District in the New York State Assembly, serving from 1896 through 1898. During the period of World War I, he led the Eastern Suffolk County draft board and held several key local governance roles including trustee of Quogue village, member of the school board, and fire commissioner.

His business endeavors included being a founding director of Southampton Bank in 1888 and serving as treasurer for Quogue Ice Company starting in 1893. Subsequently, he held executive positions such as president of Seaside Bank and Quantuck Water Works Company; vice president and director of Queens, Nassau & Suffolk Realty Company; director and vice president of Nassau-Suffolk Bond and Mortgage Guarantee Company; as well as trustee roles for Riverhead Savings Bank and Suffolk County Mutual Insurance Company. By 1932, he had advanced to vice president and then president of Riverhead Savings Bank.

Post was actively involved with fraternal organizations including the Freemasons, Royal Arch Masonry, Shriners, and was a member of the American Geographical Society. Additionally, he served as a trustee for the Quogue Presbyterian Church. In 1885, he married Anna Grace Foster from Pennsylvania.

He passed away on March 30, 1937, due to a heart attack aboard a train near Richmond, Virginia, shortly after returning from a fishing excursion in Fort Myers, Florida. His final resting place is Riverhead Cemetery.

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