Isaac Roosevelt (politician)

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Isaac Roosevelt
Isaac Roosevelt.jpg
New York State Senate
In office
September 9, 1777 – June 30, 1786
In office
July 1, 1788 – June 30, 1792
Personal details
Born (1726-12-19)December 19, 1726
New York City, New York
Died October 1794 (aged 67)
Nationality American
Political party Federalist
Spouse(s) Cornelia Hoffman
(m. 1752; d. 1792)
Children 10
Parents Jacobus Roosevelt
Catharina Hardenbroek
Relatives See Roosevelt family
Occupation Merchant and Politician

Isaac Roosevelt (December 19, 1726 – October 1794) was an American merchant and Federalist politician. He served in the New York State Assembly and the state Constitutional Convention and achieved the most political success of any Roosevelt before Theodore Roosevelt. Isaac was the patrilineal great-great-grandfather of President Franklin Delano Roosevelt.

Early life[edit]

Roosevelt was born in New York City and baptized in the Reformed Dutch Church of New York. A member of the Roosevelt family, He was the son of Jacobus Roosevelt, grandson of Nicholas Roosevelt, and great-grandson of the Dutch immigrant Claes Maartenszen Van Rosenvelt.


He was one of the first large-scale sugar refiners in New York City. He built one of the first sugar refineries in the city and originally had his store on Wall Street, later removing to St. George's Square.

"Isaac Roosevelt is removed from his house in Wall Street to the house of his late brother, Jacobus Roosevelt, Jr., deceased, near the Sugar house, and opposite to Mr. William Waltons, being on the northwest side of Queen Street, where his customers may be supplied as usual with double, middling and single refined loaf sugars, clarified, muscovado and other molasses, & etc." - April 25, 1772

Active in the community, he was one of the first members of the New York City Chamber of Commerce, organized in 1768, and he was one of the original incorporators of the first public hospital in New York in 1770. He was a cofounder of the Bank of New York in 1784, and became its second president, a post he held from 1786 to 1791.

Political office[edit]

A noted patriot, he was elected to the New York Provincial Congress on April 22, 1775. He was one of the Committee of One Hundred that took control of the state government in May 1775. Though he felt no allegiance to England, he was initially a moderate, hoping to prevent conflict. However, he withdrew from New York when the British occupied the city, and spent the period of occupation at his wife's home in Dutchess County, serving with the Sixth Regiment of the Dutchess County Militia. After the war, as one of ten representatives from New York City (among John Jay, Alexander Hamilton,[1] and Robert R. Livingston), he took part in the New York State Convention at Poughkeepsie on June 18, 1788 that deliberated on the adoption of the United States Constitution. He was a member of the New York State Senate (Southern District) from 1777 to 1786, and from 1788 to 1792.

Personal life[edit]

He married Cornelia Hoffman of the Hoffman family, the daughter of a prominent Dutchess County landowner, on September 22, 1752. They had ten children, including:

He died in October 1794.


  1. ^ Collier, Peter; Horowitz, David (June 1, 1995). Roosevelts: An American Saga. Simon and Schuster. ISBN 9780684801407. Retrieved 18 October 2016. 


  • Schriftgiesser, Karl (1942). The Amazing Roosevelt Family, 1613-1942. Wildred Funk, Inc. 
  • Whittelsey, Charles B. (1902). The Roosevelt Genealogy, 1649-1902.