1711 – John Hart, signer, was born in around 1711. He was the son of Edward Hart, a Justice of the Peace, public assessor, and farmer.
1739 – Had acquired his own farm, near Hopewell and that year he married Deborah Scudder. The couple would have 12 children.
1750 – Was elected a Freeholder of Hunterdon County.
1761 – 1771 – First elected to the New Jersey colonial Assembly and served there until it was dissolved. He was appointed to the local Committee of Safety and the Committee of Correspondence, and became a judge on the Court of Common Pleas. He was often called "Honest John".
1776 – The New Jersey delegation in the Continental Congress was opposed to independence. As a result, the entire delegation was replaced, and Hart was one of those selected. He joined the Continental Congress on the 22nd of June, in time to vote for and sign the Declaration of Independence.
1776 – 1778 – Elected as General Assembly under their new state constitution. Hart was returned to that body, and served as the Speaker of the Assembly.
1779 – The New Jersey Gazette said: On Tuesday the 11th instant, departed this life at his seat in Hopewell, JOHN HART, Esq. the Representative in General Assembly for the county of Hunterdon, and late Speaker of that House on the 19th of May. He had served in the Assembly for many years under the former government, taken an early and active part in the present revolution, and continued to the day he was seized with his last illness to discharge the duties of a faithful and upright patriot in the service of his country in general and the county he represented in particular .
– He was a member of the Council of Safety, given extraordinary powers to run the state during emergencies. He died at home of kidney stones, ("the gravel"), on Tuesday, 11th of May, age 66 and is now buried in the First Baptist Church Cemetery in Hopewell, New Jersey.