| Descendancy Chart: | 
 - Lambertus Lammerts  (I06814) Birth 6 October 1829 -- Warfhuizen, Leens, Groningen, Netherlands (I06814) Birth 6 October 1829 -- Warfhuizen, Leens, Groningen, Netherlands
 Death 28 March 1875 (Age 45) -- Deb Hoorn, Leens, Groningen, Netherlands
  
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  Marriage  25 June 1866   -- Leens, Ulrum, Groningen, Netherlands Marriage  25 June 1866   -- Leens, Ulrum, Groningen, Netherlands
 - Johanna Jacoba Polker  (I06815) Birth 18 December 1832 -- Mensingeweer, De Marne, Groningen, Netherlands (I06815) Birth 18 December 1832 -- Mensingeweer, De Marne, Groningen, Netherlands
 Death 19 March 1902 (Age 69) -- Groningen, Groningen, Groningen, Netherlands
 
 - Number of Children: 3 
 - Catharina Magdalena Lammerts  (I06823) Birth 17 May 1867 -- Hoorn, Leens, Groningen, Netherlands (I06823) Birth 17 May 1867 -- Hoorn, Leens, Groningen, Netherlands
 Death 25 September 1925 (Age 58) -- Groningen, Groningen, Groningen, Netherlands
  
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  Marriage  28 September 1891   -- Bedum, Bedum, Groningen, Netherlands Marriage  28 September 1891   -- Bedum, Bedum, Groningen, Netherlands
 - Bernardus Stephanus Witte  (I06824) Birth 13 August 1865 -- Groningen, Groningen, Groningen, Netherlands (I06824) Birth 13 August 1865 -- Groningen, Groningen, Groningen, Netherlands
 Death 18 April 1930 (Age 64) -- Groningen, Groningen, Groningen, Netherlands
 
 - Number of Children: 4 
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 Cornelis Johannes van Velzen
 - Agatha Juliana Katharina Witte  (I06827) Birth 22 September 1892 -- Groningen, Groningen, Groningen, Netherlands (I06827) Birth 22 September 1892 -- Groningen, Groningen, Groningen, Netherlands
 Death 31 August 1917 (Age 24) -- Groningen, Groningen, Groningen, Netherlands
  
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  Marriage  22 May 1916   -- Groningen, Groningen, Groningen, Netherlands Marriage  22 May 1916   -- Groningen, Groningen, Groningen, Netherlands
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 Agatha Juliana Katharina Witte
 - Cornelis Johannes van Velzen  (I06828) Birth 1891 -- Voorschoten, Voorschoten, Zuid-Holland, Netherlands (I06828) Birth 1891 -- Voorschoten, Voorschoten, Zuid-Holland, Netherlands
 Death 29 February 1944 (Age 53) -- Haren, Haren, Groningen, Netherlands
 
 - Unknown children 
 
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 Theodora Silvius
 - Lambertus Hermannus Ignatius Witte  (I06829) Birth 23 August 1893 -- Groningen, Groningen, Groningen, Netherlands (I06829) Birth 23 August 1893 -- Groningen, Groningen, Groningen, Netherlands
 Death 3 May 1962 (Age 68)
  
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  Marriage  18 October 1921   -- Utingeradeel, Friesland, Netherlands Marriage  18 October 1921   -- Utingeradeel, Friesland, Netherlands
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 Lambertus Hermannus Ignatius Witte
 - Theodora Silvius  (I06830) Birth 15 September 1891 -- Kollum, Kollumerland, Friesland, Netherlands (I06830) Birth 15 September 1891 -- Kollum, Kollumerland, Friesland, Netherlands
 Death 14 January 1981 (Age 89)
 
 - Unknown children 
 
 - Johanna Jacoba Magdalena Witte  (I21539) Birth 9 August 1895 -- Groningen, Groningen, Groningen, Netherlands (I21539) Birth 9 August 1895 -- Groningen, Groningen, Groningen, Netherlands
 Death 26 December 1924 (Age 29) -- Groningen, Groningen, Groningen, Netherlands
  
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 - Magdalena Johanna Witte  (I21540) Birth 14 July 1900 -- Groningen, Groningen, Groningen, Netherlands (I21540) Birth 14 July 1900 -- Groningen, Groningen, Groningen, Netherlands
 Death 19 December 1947 (Age 47) -- Groningen, Groningen, Groningen, Netherlands
  
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 Johannes Lodovidicus Wijnants
 Wilhelmus Ludovicus Joseph Wijnants- Magdalena Johanna Lammerts  (I06825) Birth 11 March 1873 -- Den Hoorn, Leens, Groningen, Netherlands (I06825) Birth 11 March 1873 -- Den Hoorn, Leens, Groningen, Netherlands
 Death 11 August 1924 (Age 51) -- Appingedam, Appingedam, Groningen, Netherlands
  
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  Marriage  19 October 1904   -- Appingedam, Appingedam, Groningen, Netherlands Marriage  19 October 1904   -- Appingedam, Appingedam, Groningen, Netherlands
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 Magdalena Johanna Lammerts
 Wilhelmus Ludovicus Joseph Wijnants- Johannes Lodovidicus Wijnants  (I06826) Birth 19 July 1866 -- Appingedam, Appingedam, Groningen, Netherlands (I06826) Birth 19 July 1866 -- Appingedam, Appingedam, Groningen, Netherlands
 Death 4 March 1918 (Age 51) -- Appingedam, Appingedam, Groningen, Netherlands
 
 - Number of Children: 1 
 - Wilhelmus Ludovicus Joseph Wijnants  (I23258) Birth 14 May 1910 -- Appingedam, Appingedam, Groningen, Netherlands (I23258) Birth 14 May 1910 -- Appingedam, Appingedam, Groningen, Netherlands
 Death 7 January 1927 (Age 16) -- Groningen, Groningen, Groningen, Netherlands
  
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 - Gerardus Hermannus Lammerts  (I17584) Birth 30 August 1869 -- Den Hoorn, Leens, Groningen, Netherlands (I17584) Birth 30 August 1869 -- Den Hoorn, Leens, Groningen, Netherlands
 Death 7 February 1929 (Age 59) -- Groningen, Groningen, Groningen, Netherlands
  
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  Marriage  3 January 1901   -- Groningen, Groningen, Groningen, Netherlands Marriage  3 January 1901   -- Groningen, Groningen, Groningen, Netherlands
 - Regina Johanna Maria Kempen  (I17585) Birth 18 November 1869 -- Groningen, Groningen, Groningen, Netherlands (I17585) Birth 18 November 1869 -- Groningen, Groningen, Groningen, Netherlands
 Death 20 June 1954 (Age 84) -- Groningen, Groningen, Groningen, Netherlands
 
 - Number of Children: 3 
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 Ida Margaretha Maria Schwenke
 - Lambertus Hermannus Ignatius Lammerts  (I23243) Birth 23 July 1902 -- Groningen, Groningen, Groningen, Netherlands (I23243) Birth 23 July 1902 -- Groningen, Groningen, Groningen, Netherlands
  
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  Marriage  24 April 1930   -- Groningen, Groningen, Groningen, Netherlands Marriage  24 April 1930   -- Groningen, Groningen, Groningen, Netherlands
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 Lambertus Hermannus Ignatius Lammerts
 - Ida Margaretha Maria Schwenke  (I23246) Birth 17 July 1905 -- Groningen, Groningen, Groningen, Netherlands (I23246) Birth 17 July 1905 -- Groningen, Groningen, Groningen, Netherlands
 
 - Unknown children 
 
 - Alieda Debora Christophora Maria Lammerts  (I23244) Birth 2 July 1903 -- Groningen, Groningen, Groningen, Netherlands (I23244) Birth 2 July 1903 -- Groningen, Groningen, Groningen, Netherlands
  
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 - Johannes Jacobus Jozef Lammerts  (I23245) Birth 31 March 1906 -- Groningen, Groningen, Groningen, Netherlands (I23245) Birth 31 March 1906 -- Groningen, Groningen, Groningen, Netherlands
  
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