October 13, 1776.
    At a meeting of the Field Officers of Ulster County, at the house of Mrs. Ann Duboise, at the New-Paltz:
    Present: Colonel Hasbrouck, Colonel McClaghry, Colonel Elmendorph, Colonel Hoornbeck, Major Jansen, Major Wynkoop.
    Have appointed Major Wynkoop to take the command of the two hundred men immediately to be raised in said County, pursuant to the resolves of the Committee of Safety for the State of New-York, dated October 10th and 11th.
    Also unanimously agreed, three Captains, three First Lieutenants, and three Second Lieutenants, be appointed by the Field Officers in their respective regiments in said County:
    Colonel Hasbrouck, one Captain, one First Lieutenant.
    Colonel McClaghry, one Captain, two Second Lieuts.
    Colonel Elmendorph, one Captain, one Second Lieut.
    Colonel Hoornbeck, two First Lieutenants.
                                       JONATHAN HASBROUCK, Colonel.

Source:

Force, Peter, American Archives: Consisting of a collection of authentick records, state papers, debates, and letters and other notices of publick affairs, the whole forming a documentary history of the origin and progress of the North American colonies; of the causes and accomplishment of the American revolution; and of the Constitution of government for the United States, to the final ratification thereof., 5th Series, M. St. Clair Clarke and Peter Force, 1837-46, Volume II, p. 1027