UPDATED: 14 September  2026

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Petronella Helen Schuhman

Petronella Helen Schuhman

Female 1842 - 1910  (68 years)


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Generation: 1

  1. 1.  Petronella Helen Schuhman was born in Feb 1842 in Germany; died on 17 Nov 1910 in Rochester, Monroe, New York; was buried in Rochester, Monroe, New York.

    Petronella married Adelbert Michel on 17 Jan 1861 in Rochester, Monroe, New York. Adelbert (son of John Michel and Margaret Wagner) was born in Aug 1837 in Rochester, Monroe, New York; died on 13 Dec 1912 in Rochester, Monroe, New York; was buried in Rochester, Monroe, New York. [Group Sheet] [Family Chart]

    Children:
    1. 2. Frances Michael  Descendancy chart to this point was born in Dec 1861 in New York; and died.
    2. 3. William Victor Michel  Descendancy chart to this point was born on 1 Jun 1863 in Rochester, Monroe, New York; was christened on 21 Jun 1863 in Rochester, Monroe, New York; and died.
    3. 4. John Michel  Descendancy chart to this point was born on 8 May 1865 in Rochester, Monroe, New York; was christened on 11 Jun 1865 in Rochester, Monroe, New York; died on 19 May 1927 in Rochester, Monroe, New York; was buried in Rochester, Monroe, New York.
    4. 5. Mathias Michel  Descendancy chart to this point was born on 15 Nov 1867 in Rochester, Monroe, New York; was christened on 17 Nov 1867 in Rochester, Monroe, New York; died on 23 Jan 1921 in New York; was buried in Rochester, Monroe, New York.
    5. 6. Elizabeth Liliosa Michel  Descendancy chart to this point was born on 25 Oct 1870 in Rochester, Monroe, New York; was christened on 1 Nov 1870 in Rochester, Monroe, New York; died on 17 Jun 1948; was buried in Rochester, Monroe, New York.
    6. 7. Clara Aloysia Michel  Descendancy chart to this point was born on 6 Sep 1872 in Rochester, Monroe, New York; was christened on 22 Sep 1872 in Rochester, Monroe, New York; and died.
    7. 8. Frank Leon Michel  Descendancy chart to this point was born on 9 Oct 1874 in Rochester, Monroe, New York; was christened on 25 Oct 1874 in Rochester, Monroe, New York; died in 1943; was buried in Honeoye Falls, Monroe, New York.
    8. 9. George Adelbert Michel  Descendancy chart to this point was born on 11 Jul 1879 in Rochester, Monroe, New York; was christened on 27 Jul 1879 in Rochester, Monroe, New York; died on 30 Mar 1911 in Rochester, Monroe, New York; was buried in Rochester, Monroe, New York.
    9. 10. Joseph Michel  Descendancy chart to this point was born on 14 Jan 1882 in Rochester, Monroe, New York; was christened on 22 Jan 1882 in Rochester, Monroe, New York; and died.


Generation: 2

  1. 2.  Frances Michael Descendancy chart to this point (1.Petronella1) was born in Dec 1861 in New York; and died.

    Frances married Henry Schnacky on 18 May 1880 in Rochester, Monroe, New York. Henry (son of Michael Schnacky and Barbara Sens) was born in Jul 1849 in New York; and died. [Group Sheet] [Family Chart]

    Children:
    1. 11. John Henry Schnacky  Descendancy chart to this point was born on 11 Nov 1882 in Rochester, Monroe, New York; was christened on 19 Nov 1882 in Rochester, Monroe, New York; and died.
    2. 12. Helen Francis Schnacky  Descendancy chart to this point was born on 13 Dec 1884 in Rochester, Monroe, New York; was christened on 21 Dec 1884 in Rochester, Monroe, New York; and died.
    3. 13. Florence Barbara Schnacky  Descendancy chart to this point was born on 7 Mar 1887 in Rochester, Monroe, New York; was christened on 13 Mar 1887 in Rochester, Monroe, New York; and died.
    4. 14. Albert Mathias Schnacky  Descendancy chart to this point was born on 13 Jun 1889 in Rochester, Monroe, New York; was christened on 23 Jun 1889 in Rochester, Monroe, New York; died on 7 Nov 1967 in Rochester, Monroe, New York; was buried in Rochester, Monroe, New York.
    5. 15. Estella Maria Schnacky  Descendancy chart to this point was born on 8 May 1900 in Rochester, Monroe, New York; was christened on 20 May 1900 in Rochester, Monroe, New York; and died.

  2. 3.  William Victor Michel Descendancy chart to this point (1.Petronella1) was born on 1 Jun 1863 in Rochester, Monroe, New York; was christened on 21 Jun 1863 in Rochester, Monroe, New York; and died.

  3. 4.  John Michel Descendancy chart to this point (1.Petronella1) was born on 8 May 1865 in Rochester, Monroe, New York; was christened on 11 Jun 1865 in Rochester, Monroe, New York; died on 19 May 1927 in Rochester, Monroe, New York; was buried in Rochester, Monroe, New York.

  4. 5.  Mathias Michel Descendancy chart to this point (1.Petronella1) was born on 15 Nov 1867 in Rochester, Monroe, New York; was christened on 17 Nov 1867 in Rochester, Monroe, New York; died on 23 Jan 1921 in New York; was buried in Rochester, Monroe, New York.

    Mathias married Wilhelmina Julianna Marx on 23 May 1893 in Rochester, Monroe, New York. Wilhelmina (daughter of John Marx and Emilia Vetter) was born on 17 Jul 1868 in Rochester, Monroe, New York; was christened on 8 Aug 1868 in Rochester, Monroe, New York; died on 19 Apr 1909 in New York; was buried in Rochester, Monroe, New York. [Group Sheet] [Family Chart]

    Children:
    1. 16. John Mathew Michel  Descendancy chart to this point was born on 31 Mar 1894 in Rochester, Monroe, New York; was christened on 8 Apr 1894 in Rochester, Monroe, New York; died in Dec 1967.
    2. 17. Harold Henry Michel  Descendancy chart to this point was born on 29 Apr 1896 in Rochester, Monroe, New York; was christened on 10 May 1896 in Rochester, Monroe, New York; died on 26 Jul 1939; was buried in Rochester, Monroe, New York.
    3. 18. Blanche Rosa Michel  Descendancy chart to this point was born on 10 Nov 1898 in Rochester, Monroe, New York; was christened on 5 Dec 1898 in Rochester, Monroe, New York; and died.
    4. 19. Irene Michel  Descendancy chart to this point was born on 5 Mar 1899 in Rochester, Monroe, New York; was christened on 26 Mar 1899 in Rochester, Monroe, New York; and died.
    5. 20. Francis Michel  Descendancy chart to this point was born about 1907 in New York; and died.

  5. 6.  Elizabeth Liliosa Michel Descendancy chart to this point (1.Petronella1) was born on 25 Oct 1870 in Rochester, Monroe, New York; was christened on 1 Nov 1870 in Rochester, Monroe, New York; died on 17 Jun 1948; was buried in Rochester, Monroe, New York.

    Elizabeth married John Adam Lefrois on 10 Jan 1893 in Rochester, Monroe, New York. John (son of Peter Lefrois and Elizabeth Veronica Denhard) was born on 28 Oct 1865 in Webster, Monroe, New York; was christened on 26 Nov 1865 in Webster, Monroe, New York; died on 25 Jun 1934 in Rochester, Monroe, New York; was buried in Rochester, Monroe, New York. [Group Sheet] [Family Chart]

    Children:
    1. 21. Lillian Elizabeth Lefrois  Descendancy chart to this point was born on 29 Mar 1894 in Rochester, Monroe, New York; was christened on 15 Apr 1894 in Rochester, Monroe, New York; died on 13 Mar 1974 in Rochester, Monroe, New York; was buried in Rochester, Monroe, New York.
    2. 22. Loretta Josephine Lefrois  Descendancy chart to this point was born on 19 Mar 1895 in Rochester, Monroe, New York; was christened on 31 Mar 1895 in Rochester, Monroe, New York; died on 4 Mar 1965; was buried in Rochester, Monroe, New York.
    3. 23. Mildred Maria Lefrois  Descendancy chart to this point was born on 11 Oct 1897 in Rochester, Monroe, New York; was christened on 31 Oct 1897 in Rochester, Monroe, New York; and died.
    4. 24. Genevieve Frances Le Frois  Descendancy chart to this point was born on 24 Aug 1899 in Rochester, Monroe, New York; was christened on 17 Sep 1899 in Rochester, Monroe, New York; died on 17 Dec 1949 in New York; was buried in Rochester, Monroe, New York.
    5. 25. Avellina Helen Lefrois  Descendancy chart to this point was born on 18 Sep 1900 in Rochester, Monroe, New York; was christened on 7 Oct 1900 in Rochester, Monroe, New York; and died.

  6. 7.  Clara Aloysia Michel Descendancy chart to this point (1.Petronella1) was born on 6 Sep 1872 in Rochester, Monroe, New York; was christened on 22 Sep 1872 in Rochester, Monroe, New York; and died.

  7. 8.  Frank Leon Michel Descendancy chart to this point (1.Petronella1) was born on 9 Oct 1874 in Rochester, Monroe, New York; was christened on 25 Oct 1874 in Rochester, Monroe, New York; died in 1943; was buried in Honeoye Falls, Monroe, New York.

    Frank married Julia Doser on 24 Aug 1905 in Rochester, Monroe, New York. Julia (daughter of Bartholome Doser and Sarah Gattie) was born in Aug 1879 in New York; died in 1951; was buried in Honeoye Falls, Monroe, New York. [Group Sheet] [Family Chart]

    Children:
    1. 26. Frank Leo Michel  Descendancy chart to this point was born on 26 Nov 1906 in Rochester, Monroe, New York; was christened on 16 Dec 1906 in Rochester, Monroe, New York; and died.

  8. 9.  George Adelbert Michel Descendancy chart to this point (1.Petronella1) was born on 11 Jul 1879 in Rochester, Monroe, New York; was christened on 27 Jul 1879 in Rochester, Monroe, New York; died on 30 Mar 1911 in Rochester, Monroe, New York; was buried in Rochester, Monroe, New York.

    George married Florence Cripps on 11 Jun 1901 in Rochester, Monroe, New York. Florence (daughter of Frederick Cripps and Sophia Carstein) was born on 25 Jul 1877 in New York; was christened on 9 Jun 1907 in Rochester, Monroe, New York; and died. [Group Sheet] [Family Chart]

    Children:
    1. 27. Helen Avilina Michel  Descendancy chart to this point was born on 5 Jul 1902 in Rochester, Monroe, New York; and died.
    2. 28. George Adelbert Michel  Descendancy chart to this point was born on 18 Aug 1903 in Rochester, Monroe, New York; was christened on 30 Aug 1903 in Rochester, Monroe, New York; and died.
    3. 29. Florence Alberta Michel  Descendancy chart to this point was born on 15 Sep 1904 in Rochester, Monroe, New York; was christened on 10 Oct 1904 in Rochester, Monroe, New York; and died.

  9. 10.  Joseph Michel Descendancy chart to this point (1.Petronella1) was born on 14 Jan 1882 in Rochester, Monroe, New York; was christened on 22 Jan 1882 in Rochester, Monroe, New York; and died.


Generation: 3

  1. 11.  John Henry Schnacky Descendancy chart to this point (2.Frances2, 1.Petronella1) was born on 11 Nov 1882 in Rochester, Monroe, New York; was christened on 19 Nov 1882 in Rochester, Monroe, New York; and died.

  2. 12.  Helen Francis Schnacky Descendancy chart to this point (2.Frances2, 1.Petronella1) was born on 13 Dec 1884 in Rochester, Monroe, New York; was christened on 21 Dec 1884 in Rochester, Monroe, New York; and died.

    Helen married John Joseph Iffland on 3 Jun 1913 in Rochester, Monroe, New York. John (son of Sigmond Iffland and Josephine Grimm) was born about 1887 in Connecticut; and died. [Group Sheet] [Family Chart]


  3. 13.  Florence Barbara Schnacky Descendancy chart to this point (2.Frances2, 1.Petronella1) was born on 7 Mar 1887 in Rochester, Monroe, New York; was christened on 13 Mar 1887 in Rochester, Monroe, New York; and died.

    Florence married Herbert Victor Gysel on 23 Jul 1912 in Rochester, Monroe, New York. Herbert (son of Victor Gysel and Johanna Johns) was born on 11 Apr 1889 in Rochester, Monroe, New York; was christened on 21 Apr 1899 in Rochester, Monroe, New York; and died. [Group Sheet] [Family Chart]


  4. 14.  Albert Mathias Schnacky Descendancy chart to this point (2.Frances2, 1.Petronella1) was born on 13 Jun 1889 in Rochester, Monroe, New York; was christened on 23 Jun 1889 in Rochester, Monroe, New York; died on 7 Nov 1967 in Rochester, Monroe, New York; was buried in Rochester, Monroe, New York.

    Albert married Emma J. Hagmann on 22 Jul 1915 in Rochester, Monroe, New York. Emma (daughter of Joseph Hagmann and Emily Thren) was born on 14 Jan 1891 in Pennsylvania; died on 1 Jul 1930 in Rochester, Monroe, New York; was buried in Rochester, Monroe, New York. [Group Sheet] [Family Chart]


  5. 15.  Estella Maria Schnacky Descendancy chart to this point (2.Frances2, 1.Petronella1) was born on 8 May 1900 in Rochester, Monroe, New York; was christened on 20 May 1900 in Rochester, Monroe, New York; and died.

    Estella married Elmer Frederick Schier on 3 Nov 1920 in Rochester, Monroe, New York. Elmer (son of David Schier and Wilhelmna Kohlmetz) was born on 10 Aug 1889 in Rochester, Monroe, New York; was christened on 10 Nov 1889 in Rochester, Monroe, New York; and died. [Group Sheet] [Family Chart]


  6. 16.  John Mathew Michel Descendancy chart to this point (5.Mathias2, 1.Petronella1) was born on 31 Mar 1894 in Rochester, Monroe, New York; was christened on 8 Apr 1894 in Rochester, Monroe, New York; died in Dec 1967.

    John married Florence E. Penlon on 11 Apr 1916 in Rochester, Monroe, New York. Florence (daughter of William Penlon and Elizabeth Gardner) was born about 1895 in New York; and died. [Group Sheet] [Family Chart]


  7. 17.  Harold Henry Michel Descendancy chart to this point (5.Mathias2, 1.Petronella1) was born on 29 Apr 1896 in Rochester, Monroe, New York; was christened on 10 May 1896 in Rochester, Monroe, New York; died on 26 Jul 1939; was buried in Rochester, Monroe, New York.

    Harold married Elizabeth Louise Ochs on 19 Jul 1921 in Rochester, Monroe, New York. Elizabeth (daughter of George Joseph Ochs and Gertrude Elizabeth Wolf) was born on 11 Apr 1899 in Rochester, Monroe, New York; was christened on 30 Apr 1899 in Rochester, Monroe, New York; died on 18 May 1992; was buried in Rochester, Monroe, New York. [Group Sheet] [Family Chart]


  8. 18.  Blanche Rosa Michel Descendancy chart to this point (5.Mathias2, 1.Petronella1) was born on 10 Nov 1898 in Rochester, Monroe, New York; was christened on 5 Dec 1898 in Rochester, Monroe, New York; and died.

  9. 19.  Irene Michel Descendancy chart to this point (5.Mathias2, 1.Petronella1) was born on 5 Mar 1899 in Rochester, Monroe, New York; was christened on 26 Mar 1899 in Rochester, Monroe, New York; and died.

  10. 20.  Francis Michel Descendancy chart to this point (5.Mathias2, 1.Petronella1) was born about 1907 in New York; and died.

    Francis married Ludovica Helen Morgan on 11 Nov 1929 in Rochester, Monroe, New York. Ludovica (daughter of Frederick S. Morgan and Helen Staub) was born on 11 Aug 1907 in Rochester, Monroe, New York; was christened on 8 Sep 1907 in Rochester, Monroe, New York; and died. [Group Sheet] [Family Chart]


  11. 21.  Lillian Elizabeth Lefrois Descendancy chart to this point (6.Elizabeth2, 1.Petronella1) was born on 29 Mar 1894 in Rochester, Monroe, New York; was christened on 15 Apr 1894 in Rochester, Monroe, New York; died on 13 Mar 1974 in Rochester, Monroe, New York; was buried in Rochester, Monroe, New York.

  12. 22.  Loretta Josephine Lefrois Descendancy chart to this point (6.Elizabeth2, 1.Petronella1) was born on 19 Mar 1895 in Rochester, Monroe, New York; was christened on 31 Mar 1895 in Rochester, Monroe, New York; died on 4 Mar 1965; was buried in Rochester, Monroe, New York.

    Loretta married Harold Walter Sentiff on 3 Sep 1925 in Rochester, Monroe, New York. Harold (son of Joseph Sentiff and Wilhelmina Rickert) was born on 18 Nov 1897 in New York; died on 10 Aug 1968; was buried in Rochester, Monroe, New York. [Group Sheet] [Family Chart]

    Children:
    1. 30. Harold Sentiff  Descendancy chart to this point was born on 24 Jul 1926 in New York; died on 8 Oct 1991.
    2. 31. Eugene Sentiff  Descendancy chart to this point

  13. 23.  Mildred Maria Lefrois Descendancy chart to this point (6.Elizabeth2, 1.Petronella1) was born on 11 Oct 1897 in Rochester, Monroe, New York; was christened on 31 Oct 1897 in Rochester, Monroe, New York; and died.

  14. 24.  Genevieve Frances Le Frois Descendancy chart to this point (6.Elizabeth2, 1.Petronella1) was born on 24 Aug 1899 in Rochester, Monroe, New York; was christened on 17 Sep 1899 in Rochester, Monroe, New York; died on 17 Dec 1949 in New York; was buried in Rochester, Monroe, New York.

    Genevieve married Carl William Winterroth on 31 Dec 1929 in Irondequoit, Monroe, New York. Carl (son of Julius Winterroth and Mary Wirth) was born on 20 Apr 1890 in Rochester, Monroe, New York; was christened on 27 Apr 1890 in Rochester, Monroe, New York; and died. [Group Sheet] [Family Chart]


  15. 25.  Avellina Helen Lefrois Descendancy chart to this point (6.Elizabeth2, 1.Petronella1) was born on 18 Sep 1900 in Rochester, Monroe, New York; was christened on 7 Oct 1900 in Rochester, Monroe, New York; and died.

  16. 26.  Frank Leo Michel Descendancy chart to this point (8.Frank2, 1.Petronella1) was born on 26 Nov 1906 in Rochester, Monroe, New York; was christened on 16 Dec 1906 in Rochester, Monroe, New York; and died.

  17. 27.  Helen Avilina Michel Descendancy chart to this point (9.George2, 1.Petronella1) was born on 5 Jul 1902 in Rochester, Monroe, New York; and died.

  18. 28.  George Adelbert Michel Descendancy chart to this point (9.George2, 1.Petronella1) was born on 18 Aug 1903 in Rochester, Monroe, New York; was christened on 30 Aug 1903 in Rochester, Monroe, New York; and died.

  19. 29.  Florence Alberta Michel Descendancy chart to this point (9.George2, 1.Petronella1) was born on 15 Sep 1904 in Rochester, Monroe, New York; was christened on 10 Oct 1904 in Rochester, Monroe, New York; and died.


Generation: 4

  1. 30.  Harold Sentiff Descendancy chart to this point (22.Loretta3, 6.Elizabeth2, 1.Petronella1) was born on 24 Jul 1926 in New York; died on 8 Oct 1991.

    Family/Spouse: Carol Winterroth. Carol (daughter of Carl Rudolph Winterroth and Clarice Stothard) was born on 13 Oct 1929 in New York; died on 24 Jan 2018 in New York. [Group Sheet] [Family Chart]


  2. 31.  Eugene Sentiff Descendancy chart to this point (22.Loretta3, 6.Elizabeth2, 1.Petronella1)