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John Stevens (inventor, born 1749)

John Stevens III
John Stevens of Hoboken.jpg
Treasurer of New Jersey
In office
1776–1779
Personal details
Born (1749-06-24)June 24, 1749
New York City, Province of New York, British America
Died March 6, 1838(1838-03-06) (aged 88)
Hoboken, New Jersey, U.S.
Spouse(s) Rachel Cox
(m. 1782; his death 1838)
Children 13, including John, Robert, Edwin
Parents John Stevens
Elizabeth Alexander
Residence Castle Point
Alma mater Kings College
Military service
Allegiance  United States
Service/branch Continental Army
Rank Colonel
Battles/wars Revolutionary War

Col. John Stevens, III (June 26, 1749 – March 6, 1838) was an American lawyer, engineer, and inventor who constructed the first U.S. steam locomotive, first steam-powered ferry, and first U.S. commercial ferry service from his estate in Hoboken. He was influential in the creation of U.S. patent law.

Stevens was born June 26, 1749, in New York City, New York. He was the only son of John Stevens Jr. (1715–1792), a prominent state politician who served as a delegate to the Continental Congress, and Elizabeth Alexander (1726–1800). His sister, Mary Stevens (d. 1814), married Robert R. Livingston, the first Chancellor of the State of New York.

His maternal grandparents were James Alexander (1691–1756), the Attorney General of New Jersey, and Mary (née Spratt) Provoost Alexander (1693–1760), herself a prominent merchant in New York City. His paternal grandfather, John Stevens, emigrated from London England around 1695, and was married to Mary Campbell.

He graduated King's College (which became Columbia University) in May 1768.

After his graduation from King's College, he studied law and was admitted to the bar of New York City in 1771. He practiced law in New York and lived across the river. At public auction, he bought from the state of New Jersey a piece of land which had been confiscated from a Tory landowner. The land, described as "William Bayard's farm at Hoebuck" comprised approximately what is now the city of Hoboken. Stevens built his estate at Castle Point, on land that would later become the site of Stevens Institute of Technology (bequeathed by his son Edwin Augustus Stevens).


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