Background
He was the son of Doctor Stephen Halsey, Junior., and Hamutal (Howell) Halsey (ca 1762-1848).
He was the son of Doctor Stephen Halsey, Junior., and Hamutal (Howell) Halsey (ca 1762-1848).
He graduated from Yale College. Then he studied law with Franklin Viele in Waterford, New York, was admitted to the bar and commenced practice in Madison County, New New York
He was Surrogate of Suffolk County from 1827 to 1840. And First Judge of the County Court from 1833 to 1847. He was a presidential elector in 1844, voting for James K. Polk and George M. Dallas.
Halsey was New York State Surveyor General from 1845 until the end of 1847.
He died on May 29, 1858 in Bridgehampton, New New York
He was a member of the New York State Assembly (Suffolk Company) in 1822 and 1824. He was a member of the New York State Senate (1st Doctorate) in 1854 and 1855, elected on the Hard and Temperance tickets.