Nielsen Hayden genealogy
Family: Coert Voorheese / Marretje Van Couwenhoven (F14139)
m. Bef 1666-
Male
Coert Voorheese
Birth Abt 1637 Death Flatlands, Long Island, New York 
Burial Marriage Bef 1666 [1, 2] Father Stephen Coerte Voorhis | F14147 Group Sheet Mother
Female
Marretje Van Couwenhoven
Birth Bef 10 Apr 1644 Baptism 10 Apr 1644 Death Bef 1709 Burial Father Garret Wolfertse van Couwenhoven | F10504 Group Sheet Mother Aeltje Cornelis Cool | F10504 Group Sheet
Female
+ Neeltje Coerten Van Voorhees
Birth 1 Oct 1675 Death 4 Aug 1750 Burial Spouse Garret Schenck | F14134 Marriage Flatlands, Long Island, New York
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Sources - [S1760] A Documentary History of het (the) Nederdeutsche Gemeente, Dutch Congregation, of Oyster Bay, Queens County, Island of Nassau, now Long Island by Henry A. Stoutenburgh. 10 volumes, circa 1902-1907. Volumes 1 and 2: New York: Press of E. Storer. Volumes 3-10: New York: The Knickerbocker Press.
- [S3097] Lincoln C. Cocheu, "The Van Kouwenhoven-Conover Family." New York Genealogical and Biographical Record 70:230, 70:353, 1939; 71:69, 71:157, 71:273, 71:365, 1940; 81:123, 81:172, 81:225, 1950; 82:34, 82:89, 82:175, 82:211, 1951.
- [S1760] A Documentary History of het (the) Nederdeutsche Gemeente, Dutch Congregation, of Oyster Bay, Queens County, Island of Nassau, now Long Island by Henry A. Stoutenburgh. 10 volumes, circa 1902-1907. Volumes 1 and 2: New York: Press of E. Storer. Volumes 3-10: New York: The Knickerbocker Press.