Documentary History of the State of New York, Vol. IV
It appears by the records of this Province, that the Duke of York, In pursuance of his right, actually Sent over Governours to take and keep possession of what Belonged to him in America, who Accordingly Entred upon and took possession of this Government for him ; and tho' they did not actually settle upon the Northern Parts of the Government, yet as they Settled the Southern part of it under his Right ; I conceive it was and ought to be Considered as a possession of the whole, and that the duke of York thereby became actually possessed of the whole lands Granted to him, and that the whole thereupon become part of this Government, under the duke of York ; and Therefore that Connecticut River is realy and Truly the Eastern Bounds of this Colony.
Tis True that by the Abdication of the Crown by the Duke of York ; afterwards in the year 1688; this Government became vested in the Crown (If not before) but I believe no record or other writing Can be produced, whereby it Can be made appear, that the Crown Ever Intended to abridge the Northern bounds of this Government or to confine it to any Bounds ; but what it had, when under the Government of the Duke of York ; whence I conclude That the bounds of this Government Continue Still the Same as in his time; Except where they may have been altered as above by Agreement that it Extends to Connecticut River ; and Therefore that the Government of New Hampshire, which is to Extend westward till it meets with his Majestys other Governments, and no farther; must Terminate at that River ; as its utmost western Boundary.