 The unincorporated community of Maple Hill is located in the town and the unincorporated community of Brownville is located partially in the town.The squares that became Delmar were first surveyed in the fall of 1848 by crews working for the U.S. government.In November 1849 a crew marked all the section corners of the eastern six by six square, walking the woods and swamps on foot, measuring with chain and compass.