N.H. Rev. Stat. Ann. § 199:19-a

Whenever a school district shall take land for the location of a schoolhouse or for the enlargement of an existing schoolhouse lot as provided by RSA 199:17 the school district clerk shall forward to the registry of deeds for the county for filing where said land is located a copy of the petition of the school board to the selectmen containing a description of said land, together with the name of the owner from whom the land is taken.