History of Westchester County, New York, Vol. I
A few miles further up the Hudson was another town of the same tribe called Alipconck, or place of Elms, now Tarrytown. This tribe seems to have held the centre of the County from the lands of the Siwanoys on the east to the Hudson on the west. Adjoining them on the north were the Sint-sinks possessing two villages, Ossingsing now Sing-Sing, and Kestabuinck, the latter of which was inland and a little south of the Croton river.
From the Kicktawanc, or Croton, extending up the river to Anthony's Nose, and what is now the north line of the County, dwelt the Kicktawancks, or Kitchawongs, whose chief village was just above the mouth of the Croton river, on the isthmus connecting Senasqua, or Teller's Point, with the main land, and near the old Van Cortlandt Manor House. Eastwardly their lands appear to have extended to Connecticut and the lands of the Siwanoys. The Indians in the northern part of the county were also called the Tankitekes, which seems to have been a general
DELAWAKE INDIAN FORT. (From Campanius' "New Sweden."")
name for all dwellings north of the Wickquaeskecks. These last were said by Tienhoven in 1651, to have extended east to the Sound, but this being in conflict with de Laet's account of 1624, is believed to be an error. From Hellgate along the Sound, including the whole eastern side of Westchester County, and Connecticut, as far as Norwalk and its islands, and inland to the valley of the Bronx and the head waters of the Croton, a single and numerous tribe possessed all the land. These were the Sewanoes, or Siwanoys, as de Laet writing in 1624, the earliest and most trustworthy authority on New Netherland history, distinctly states.' They had several towns in this territory, some of which were fortified.