The History of the Several Towns, Manors, and Patents of the County of Westchester (1881 revised edition, Vol. I)
In 1680, the Indian sachem Ghoharius, with the consent of his brother Weskora, for a certain sum of wampum and other goods, released unto Frederick Philipse a large strip of land, lying on each side of the Pocanteco River, for which they acknowledged to have received full satisfaction. This sale was ratified before the Governor of the province, at Fort James, in New York, and subsequently confirmed to Frederick Philipse by royal patent, the same year. The patentee yielding and paying, therefor, yearly unto his Royal Highness, the Duke of York and Albany, a quit rent of one bushel of winter wheat, etc.
Sir Edmund Andros, Knight, &c, Whereas Frederick Philipse of this city, merchant, hath made application unto me for a grant of a certain creek or river, called by the Indians, Pocantico, (whereon to set a mill,) with a proportion of land on each side adjoining thereur.to ; the same lying within the bounds of the Indians' land at Wickers creek. on the east side of Hudson's river ; and by my leave and approbation hath made purchase thereof from the native Indian proprietors, the which they have acknowledged before me, as likewise to have received full satisfaction for the same, from the said Frederick Philipse. The said land adjoining to the creek or river aforesaid lying on each side thereof, north and south 1600 treads or steps, which at twelve feet to the rod makes 400 rods ; and runs up into the country as far as the said creek or river goeth, provided always, that if the said creek or river, called by the Indians Neppera, and by the Christians the Yonkers creek or kill, shall come within that space of land of 400 rods on the south side of