He was a member of the New York Assembly in 1759-1769, a delegate to the Stamp Act Congress of 1765, a member of the Continental Congress from 1774 until his death and as such a signer of the Declaration of Independence, and in1777-1778was a member of the first state senate.
Washington, chosen by the Continental Congress to command the army, arrived in Cambridge in July 1775, and stretching his lines around Boston, forced its evacuation in March 1776.
His grandfather, Frederick Frelinghuysen (1753-1804), was an eminent lawyer, one of the framers of the first New Jersey constitution, a soldier in the War of Independence, and a member (1778-1779 and 1782-1783) of the Continental Congress from New Jersey, and in 1793-1796 of the United States senate; and his uncle, Theodore (1787-1862), was attorney-general of New Jersey from 1817 to 1829, was a United States senator from New Jersey in 1829-1835, was the Whig candidate for vice-president on the Clay ticket in 1844, and was chancellor of the university of New York in 1839-1850 and president of Rutgers College in 1850-1862.
He was a member of the Massachusetts executive council from 1776 to 1780, and a delegate to the continental congress from 1776 to 1778.
The grandfather, Arthur Middleton (1681-1737), was president of the Council in 1721-1730 and as such was acting governor in 1725-1730, and the father, Henry Middleton (1717-1784), was speaker of the Assembly in 1745-1747 and again in 1 7541 755, a delegate to the Continental Congress in 1774-1776, and its president from October 1774 to May 1775, a member of the South Carolina Committee of Safety, and in 1775 president of the South Carolina Provincial Congress.
He was an ardent leader of the opposition to the Stamp Act, advocating even then a separation of the colonies from the mother country; and in the Continental Congress of 1774 he discussed the situation on the basis of inalienable rights and liberties, and urged an immediate attack on General Thomas Gage, that he might be defeated before receiving reinforcements.
To promote the ends he had in view he suggested non-importation, instituted the Boston committees of correspondence, urged that a Continental Congress be called, sought out and introduced into public service such allies as John Hancock, Joseph Warren and Josiah Quincy, and wrote a vast number of articles for the newspapers, especially the Boston Gazette, over a multitude of signatures.
Thomas Lynch (c. 1720-1776), Christopher Gadsden (1724-1805), and John Rutledge (1739-1800) attended the Stamp Act Congress of 1765, an intercolonial committee of correspondence was appointed in 1773, and delegates were sent to the Continental Congress in 1774 and 1775.
John Adams was a member of the Continental Congress from 1774 to 1778.
Hancock was a member of the Continental Congress from 1775 to 1780, was president of it from May 1775 to October 1 777, being the first to sign the Declaration of Independence, and was a member of the Confederation Congress in 1785-1786.