The History of the Several Towns, Manors, and Patents of the County of Westchester (1881 revised edition, Vol. I)
Among other claimants of these " Undivided Lands." in 1743, was a Benjamin Wilson, (one of the original twenty-five grantees of the East or Upper Patent, in 1 73 1 ,) who, strange to say, asserted that his right to dispose of the same, "accrued unto him by virtue of a Patent obtained with others," of Governor Montgomerie of New York. In other words, by virtue of the East Patent issued in 1731, which had nothing whatever to do with the " Undivided Lands" and also by virtue of a lease obtained of Adam Ireland, Jno. Thomas and Benjamin Birdsell, all three of whom were also grantees of the East Patent 1731."
Beginning at westerly bounds of lands surrendered on the line running north 12 degrees, 30 minutes east from the monument at the end of the twenty -one mile from Cortlandt's Point, at a point 54 chains south from the monument at the distance of four miles, and running from thence, south, 77 degrees, 30 minutes east, 145 chains to the easterly bounds of the said surrendered lands, from thence, running along the same easterly bounds north 12 degrees 30 minutes east, 294 chains to the north-cast corner, etc., etc. -- Albany deed book, 171, p. 453. On the same day occurs another release between Adam Ireland, Jno. Thomas and Benj. Birdsell, on the first part and James Brown and others of the second part, for forty two thousand acres of the said surrendered lands. (See map from book 17, p. 457.) Albany deed book 17, from 1765 to 1768, p. 457. "B" A third Indenture 22d of June, 1731, between Wm. Smith of the first part and George Clarke, Esq., of the second part, which recites that whereas by his Majesty'sletter Patent bearing date the 8th day of this inst.