(1)  Wilhelm Williamzen Jansz "Ye Duyster" Van Heerden, born about 1620 in Einigen, County Brabant, Netherlands, emigrated to New Netherlands before 1660.  William appears at Fort Orange, Beverwyk (later called Albany, New York) before 1660. There is no record of his first wife, who was mother of his two sons. His second wife, Leentje Martins Kuyter, was the widow of Jockem Pieterzen Kuyter, a hero in the early history of New York. She was killed by Indians.  Roeloff Williamzen Ye Duyster and Jan Williamzen Ye Duyster were William's sons and they appeared with him before 1660 in Fort Orange.

Children:

1. Jan Wilhelmszen, mentioned below
2. Roeloff Williamzen Ye Duyster born about 1645 in Netherlands arrived with father before 1660 married Willempje "Wilhelmina" Thyssen, daughter of Matthew Thyssen. After his death, his wife remarried Jan Cornell Buys. Parents of:
   1. Mageltje Roelofsze de Duyster; married 19 August 1683 at Midwout, Long Island, Jan Hendrickszen Oosteroom a.k.a. van Ostrum, born 24 June 1657, son of Hendrick Janszen van Schalckwyck and Tryntje Lubbertse. Parents of:
      1. Trientje Oosteroom, baptized 20 June 1684 at Bergen, New Jersey; married Herman Reynierszen, son of Harmen Reynierszen and Jennetie Courtois/Coutois, daughter of Jasper Courtois/Coutois. Parents of:
         1. Catherine a.k.a. "Trintje" Reinders/Rynders, born about 1714; married Roelof/Ruluff Dutcher, mentioned below

        (2)  Jan Wilhelmszen De Duitscher, born about 1640 in Kingston, Albany Co., New york; married before 1662 in Kingston, Ulster Co., New York, Margaret "Grietje" Cornelisse, born about 1642 in Kingston, Albany Co., New York, daughter of Cornelius Cornelisse.  Jan's name changed to Jan Williamzen Dutcher and he served in the early Indian War 1686-1687 in Kingston, Ulster County.  Parents of:
 
 

        (3)  Roelof De Duyster, born about 1670 in Marbletown, Ulster Co., New York, died 19 January 1735 in New Milford, Litchfield Co., Connecticut; married 17 November 1700 in Kingston, Albany Co., New York, Jannetji Bressie, born about 1672 at Albany, Albany Co., New York, died 26 July 1749, daughter of Christofel Brissie and Styutje Claes.  Parents of:
 
 

        (4)  Roelof/Ruluff Dutcher, born 1716 in Loneberry, Dutchess Co., New York, died 8 February 1805 at St. Albans, Vermont at the house of his grandson Daniel Dutcher; married in Dutchess Co., before Justice of the Peace Francis Filkins, on 1 May 1738 Catherine a.k.a. "Trintje" Reinders/Rynders, born about 1714, died December 1799 at St. Albans, Vermont, age 85 years.  On 13 May 1741, the same J.P. married Catherine's sister Helena Reinders to Isaac White, son of William White.
         In 1742 Roeloff was assessed taxes at Weatogue, Litchfield Co., Connecticut. By 1785, he and son Christopher removed their families to St. Albans, Vermont. In the 1790 census, Roeloff was enumerated in Hungerford, and Christopher in St. Albans.
        Family tradition used to tell stories of Roelof enjoying his peaceful old age sitting before of his farmhouse door.

Children:

1. Mary Magdalena, born 1 September 1741 at Salisbury, Litchfield Co., Connecticut; married about 1766 in Salisbury, Litchfield Co., Connecticut, Jabez Knapp, born 24 June 1741 in Stamford, Fairfield Co., Connecticut,  died after 1800 in Salisbury, Litchfield Co., Connecticut.
2. Jane, born on 31 December 1743 in Salisbury, Litchfield Co., Connecticut; married William Ashley.
3. Catherine, born 4 December 1746.
4. Christina, born on 23 January 1748 in Athens, New York; married 27 October 1767 in Canaan, Litchfield Co., Connecticut, Joshua Stevens.
5. Ruluff, born on 2 August 1751 in Litchfield, Litchfield Co., Connecticut, died 1 December 1809; married 1781 Polly (Mary) Nichols, born 2 November 1766, died 26 July 1837.
6. Christopher, born on 7 July 1757 in Sheffield, Berkshire Co., Massachusetts, died 14 February 1814 in St. Albans, Vermont; married 9 December 1779 Rosanna Holcomb, born 21 August 1760, died 21 May 1813.