It was surveyed officially in the spring of 1741. The new boundary passed through the original Groton grant, and cut off a triangular portion of its territory, now within the limits of Nashua, and went to the southward of Groton Gore, leaving that tract of land wholly in New Hampshire. A few years previously to this time the original grant had undergone other dismemberment, when a slice of its territory was given to Westford. It was a long and narrow tract of land, triangular in shape, with its base resting on Stony Brook Pond, now known as Forge Pond, and coming to a point near Millstone Hill, where the boundary lines of Groton, Westford, and Tyngsborough intersect. The Reverend Edwin R. Hodgman, in his History of Westford, says:-- Probably there was no computation of the area of this triangle at any time. Only four men are named as the owners of it, but they, it is supposed, held titles to only a portion, and the remainder was wild, or "common," land, (Page 25.) In the Journal of the House of Representatives (page 9), September 10, 1730, there is recorded:-- A petition of _Jonas Prescot, Ebenezer Prescot, Abner Kent_, and _Ebenezer Townsend_, Inhabitants of the Town of _Groton_, praying, That they and their Estates, contained in the following Boundaries, _viz._ beginning at the _Northwesterly_ Corner of _Stony Brook_ Pond, from thence extending to the _Northwesterly_ Corner of _Westford_, commonly called _Tyng's_ Corner, and so bound _Southerly_ by said Pond, may be set off to the Town of _Westford_, for Reasons mentioned. Read and _Ordered_, That the Petitioners within named, with their Estates, according to the Bounds before recited, be and hereby are to all Intents and Purposes set off from the Town of _Groton_, and annexed to the said Town of _Westford_. Sent up for Concurrence. This order received the concurrence of the council, and was signed by the governor, on the same day that it passed the House. During this period the town of Harvard was incorporated. It was made up from portions of Groton, Lancaster, and Stow, and the engrossed act signed by the governor, on June 29, 1732. The petition for the township was presented to the General Court nearly two years before the date of incorporation. In the Journal of the House of Representatives (pages 84, 85), October 9, 1730, it is recorded:--