Cornelius Eldert
American businessman and philanthropist
About Cornelius Eldert
Lived 1850 – 1930 (aged 79–80). Cornelius Eldert was a philanthropist, business executive and businessperson.
Cornelius Eldert (1850 – January 24, 1930) was an American businessman and philanthropist who served as president of the Atlantic Mutual Insurance Company.
Early life Eldert was born in 1850 in Brooklyn, New York and was a descendant of Dutch immigrants to New Amsterdam. He was a son of Samuel Eldert (1815–1870) and Aletta Ann ( Stoothoff) Eldert (1818–1898), and his brother was Ditmas Eldert. His maternal grandparents were Mary and John C. Stoothoff, and his paternal grandparents were Luke Eldert and Femmetye Phebe van Wicklen.
In his youth Eldert played baseball for the Crescent Base Ball Club of Jamaica, New York, and, in 1861, he had two of his fingers cut off by a straw cutter.
Career Beginning in 1865 at age sixteen, Eldert became associated with the Atlantic Mutual Insurance Company and spent the rest of his career there, focusing on marine insurance. The company, which had been founded in 1838 as the Atlantic Insurance Company as a joint-stock company, became a mutual company in 1842. He also served as president and director of the Board of Underwriters of New York, resigning the presidency a few years before his death.
Eldert also served as trustee of the Seamen's Bank for Savings, vice president and director of the Atlantic Safe Deposit Company, and a director of the Underwriters Salvage Company and of the Metropolitan Trust Company.
Personal life Eldert was married to Isabelle Kate Cameron (1852–1935). Isabelle, who was born in British Guiana, was a daughter of Isabella Catherine ( Groves) Cameron and Donald Cameron. Her sister, Edith Cameron, was the wife of H. A. Graham Driscoll. Together, they lived at 557 First Street in Brooklyn and were the parents of: son of Irish immigrant Joseph P. Smyth, in 1905. Henry Cameron Eldert (1880–1937), a lawyer who married Marion Macmillin.
A prominent philanthropist and "generous supporter of diocesan and community charities," he was president of the Life Saving Benevolent Society from 1919 to 1930 and vice president of the Brooklyn Association for the Improvement of the Condition of the Poor. After a funeral at St. Luke's Episcopal Church on Clinton Avenue in Brooklyn (where he had been a vestryman and warden), he was buried at Green-Wood Cemetery. was left to his family. His widow died in 1935.
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Important facts
People in Cornelius Eldert's life
Named in this biography and alive at the same time
Contemporaries
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Frequently asked questions
Who was Cornelius Eldert?
American businessman and philanthropist
When was Cornelius Eldert born?
Cornelius Eldert was born in 1850.
When did Cornelius Eldert die?
Cornelius Eldert died in 1930.
What was Cornelius Eldert's occupation?
Cornelius Eldert was a philanthropist, business executive and businessperson.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Cornelius Eldert. https://biography.guide/cornelius-eldert/
MLA: "Cornelius Eldert." Biography.guide, https://biography.guide/cornelius-eldert/.
Chicago: "Cornelius Eldert." Biography.guide. https://biography.guide/cornelius-eldert/.
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