N.H. Rev. Stat. Ann. § 44:12

Three selectmen, a moderator and a clerk shall be elected in each of the wards, who shall have the powers, perform the duties, and be subject to the liabilities, of those officers in towns, so far as relates to the warning of meetings, conducting elections, counting and declaring votes, recording the same, making returns of the votes received and certificates of elections, and all other matters relating to elections.