The History of the Several Towns, Manors, and Patents of the County of Westchester (1881 revised edition, Vol. I)
The west purchase was made and "every man y' hath land in ye town hath liberty to put in a head," or share. -- There were 36 of these head rights, of which Col. Jacobus Van Cortlandt had 8, Zach. Roberts, 3, John Copp, 2, John Holmes, Jr., 2, and the rest one. The land was then surveyed by Copp and laid out into 36 lots of 50 acres each (for the small field plan seems to have become exploded) which were subsequently drawn for by lot. One of the town books consists of the records of this "west purchase" or " new purchase," and is in the neat handwriting of Copp -- Proprietors Clerk. It shows how he first laid out two highways ten rods wide from Broad Brook west to the Kisco Brook,
d Bound, letters, No. 14S.
HISTORY OF THE COUNTY OF WESTCHESTER.
and then laid out his fifty acre tracts on each side of them. This book was accompanied by a map, which cannot now be found. The two ten rod highways were the one leading from S. C. Sutton's to Mt Kisco and the nearly parallel one a mile south leading over Knapp's Hill, nearly in a straight course to Kisco Mountain. The present ' swamp road" running south from Simeon Woolsey's was at this time laid out as a "four rod highway," but the liberal views of John Copp and his employers did not prevail with their successors and there are now but ordinary roads with occasional wide spots. There was also a quantity of rough land bounded "northerley by ye highway y1 passes under Nonames Hill, called Frederick's path," (which I take to be the road leading from the Four Corners to Mt. Kisco). The division of the "west purchase" was not fully concluded until 1738."