Sold the land of the North Cemetery to the town of Portsmouth in 1753. The historic marker in the cemetery says "The Town of Portsmouth purchased this land in 1753 for 150 pounds from Col. John Hart, commander of the N.H. Regiment at Louisburg. General William Whipple, Signer of the Declaration of Independence, Gov. John Langdon, Signer of the Constitution, Capt. Thomas Thompson, of the Continental Ship Raleigh, are among noted citizens buried here."

"In 1758, Col. John Hart took command of a New Hampshire regiment of several hundred men, and marched with them to Lake George to join Gen. Abercrombie. his forces were joined by those of Col. Goff; and under command of the latter they were ordered down the shores of Lake Champlain to cut off a body of French and Indians, who had been in what is now the State of New York, and had done some mischief there. But Col. Goff, regarding discretion the better part of valor, thought best to keep clear of bullets, and so landed on an island in Lake Champlain, drew his men up in a hollow square, went to prayer, and prayed that there might be a long and moderate war and no bloodshed."6

"Col. John Hart's son Henry (not Richard, as we stated) settled in Newington, on the farm now belonging to Richard Pickering, Esq. He had a blacksmith's shop standing between the house and the road."6

"1758: This year New Hampshire raised eight hundred men, and gave the command of them to Colonel John Hart, who marched with them to Lake George to join General Abercrombie." 10