Frelinghuysen. I. Frederick, an American statesman, born in New Jersey, April 13,1753, died April 13, 1804. He graduated at Princeton college in 1770, and in 1775 was sent as a delegate from New Jersey to the continental congress. He served with distinction as captain of a volunteer corps of artillery at the battles of Trenton and Monmouth, and in the former, it is said, shot Col. Rahl, the commander of the Hessians. He was promoted to be colonel, and served during the remainder of the war. After the peace he filled various state and county offices, and in 1790, when the New Jersey and Pennsylvania troops were called to take part in the expedition against the western Indians, he was appointed major general by President Washington. In 1793 he was elected a senator of the United States, which post he occupied for three years, when, in consequence of domestic bereavement, he resigned, and devoted the remainder of his life to his family and private affairs.

II. Theodore, an American statesman, son of the preceding, born at Millstone, Somerset co., N. J., March 28, 1787, died in New Brunswick, N. J., April 12, 1862. He graduated at Princeton college in 1804, and in 1808 was admitted to the bar, where he soon became distinguished as an eloquent advocate. During the war with Great Britain in 1812-'15, he raised and commanded a company of volunteers. In 1817 he was elected attorney general of New Jersey by a legislature opposed to him in politics, and held the post till 1829, when he was chosen United States senator. In the senate Mr. Frelinghuysen acted with the whig party. He exerted himself in behalf of the Indians, advocated the bill to suppress the carrying of mails on the sabbath, supported Mr. Clay's resolution for a national fast in the season of the cholera, spoke in favor of the extension of the pension system, and acted in unison with Mr. Clay on the questions of the tariff and the compromise act of 1833. In 1838 he was chosen chancellor of the university of New York, and took up his residence in that city. In May, 1844, the whig national convention at Baltimore nominated him for vice president and Henry Clay for president. They received 105 electoral votes, while James K. Polk and George M. Dallas received 170 votes.

In 1850 Mr. Frelinghuysen resigned the chancellorship of the university of New York to become president of Rutgers college, New Brunswick, N. J., and removed to that city, where he resided until his death.-See "Memoir of the Life of T. Frelinghuysen," by T. W. Chambers.

III. Frederick Theodore, an American statesman, nephew and adopted son of the preceding, born at Milltown, Somerset co., N. J., Aug. 4, 1817. He graduated at Rutgers college in 1836, was admitted to the bar in 1839, was appointed attorney general of the state in 1861, and reappointed in 1866. He was appointed United States senator in 1866 to fill a vacancy, and was elected in 1867 for the rest of the term, which expired in 1869. In the following year he was chosen senator for the term beginning in 1871.