| Descendancy Chart: | 
 - Harmina Jans Wieringa  (I05892) Birth 10 November 1829 -- Ezinge, Winsum, Groningen, Netherlands (I05892) Birth 10 November 1829 -- Ezinge, Winsum, Groningen, Netherlands
 Death 13 September 1915 (Age 85) -- Zuidhorn, Zuidhorn, Groningen, Netherlands
 
 1
  Marriage  16 May 1850   -- Ezinge, Winsum, Groningen, Netherlands Marriage  16 May 1850   -- Ezinge, Winsum, Groningen, Netherlands
 - Abel Klaassens Kooi  (I05891) Birth 6 October 1821 -- Saaksum, Oldehove, Groningen, Netherlands (I05891) Birth 6 October 1821 -- Saaksum, Oldehove, Groningen, Netherlands
 Death 17 August 1889 (Age 67) -- Zuidhorn, Zuidhorn, Groningen, Netherlands
  
 - Number of Children: 7 
 - Klaas Kooij  (I06007) Birth 1 April 1851 -- Saaksum, Oldehove, Groningen, Netherlands (I06007) Birth 1 April 1851 -- Saaksum, Oldehove, Groningen, Netherlands
 Death 27 March 1933 (Age 81) -- Groningen, Groningen, Groningen, Netherlands
  
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  Marriage  3 August 1878   -- Groningen, Groningen, Groningen, Netherlands Marriage  3 August 1878   -- Groningen, Groningen, Groningen, Netherlands
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 Klaas Kooij
 Hesje Alberta Kooij
 Frederik Albertus Kooij- Jantje Engberta Kappers  (I06008) Birth 30 May 1851 -- Groningen, Groningen, Groningen, Netherlands (I06008) Birth 30 May 1851 -- Groningen, Groningen, Groningen, Netherlands
 Death 27 November 1883 (Age 32) -- Groningen, Groningen, Groningen, Netherlands
 
 - Number of Children: 2 
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 Nicolaas Jacobus Alphonsus Frederik Boerma
 - Hesje Alberta Kooij  (I06014) Birth 4 April 1880 -- Groningen, Groningen, Groningen, Netherlands (I06014) Birth 4 April 1880 -- Groningen, Groningen, Groningen, Netherlands
 Death 7 July 1940 (Age 60) -- Den Haag, Den Haag, Zuid-Holland, Netherlands
  
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  Marriage  2 September 1910   -- Groningen, Groningen, Groningen, Netherlands Marriage  2 September 1910   -- Groningen, Groningen, Groningen, Netherlands
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 Hesje Alberta Kooij
 - Nicolaas Jacobus Alphonsus Frederik Boerma  (I06015) Birth 17 July 1871 -- Bedum, Bedum, Groningen, Netherlands (I06015) Birth 17 July 1871 -- Bedum, Bedum, Groningen, Netherlands
 Death 3 February 1962 (Age 90) -- 's Gravenhage, Den Haag, Zuid-Holland, Netherlands
 
 - Unknown children 
 
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 Harmina Jacoba de Grave
 - Frederik Albertus Kooij  (I06016) Birth 15 April 1882 -- Groningen, Groningen, Groningen, Netherlands (I06016) Birth 15 April 1882 -- Groningen, Groningen, Groningen, Netherlands
 Death 13 April 1932 (Age 49) -- Groningen, Groningen, Groningen, Netherlands
  
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  Marriage  18 April 1910   -- Groningen, Groningen, Groningen, Netherlands Marriage  18 April 1910   -- Groningen, Groningen, Groningen, Netherlands
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 Frederik Albertus Kooij
 - Harmina Jacoba de Grave  (I06017) Birth 22 May 1883 -- Groningen, Groningen, Groningen, Netherlands (I06017) Birth 22 May 1883 -- Groningen, Groningen, Groningen, Netherlands
 
 - Unknown children 
 
 
  Marriage  4 May 1886   -- Groningen, Groningen, Groningen, Netherlands Marriage  4 May 1886   -- Groningen, Groningen, Groningen, Netherlands
 - Johanna Antoineta Elisabeth Hesse  (I06013) Birth 8 February 1860 -- Emden, Hanover, Pruessen, Germany (I06013) Birth 8 February 1860 -- Emden, Hanover, Pruessen, Germany
 Death 3 June 1915 (Age 55) -- Groningen, Groningen, Groningen, Netherlands
 
 - Number of Children: 3 
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 Alida Dikkers
 - Frans Hieronijmus Kooij  (I20270) Birth 1890 -- Groningen, Groningen, Groningen, Netherlands (I20270) Birth 1890 -- Groningen, Groningen, Groningen, Netherlands
  
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  Marriage  4 August 1914   -- Arnhem, Arnhem, Gelderland, Netherlands Marriage  4 August 1914   -- Arnhem, Arnhem, Gelderland, Netherlands
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 Frans Hieronijmus Kooij
 - Alida Dikkers  (I20271) Birth 1890 -- Almelo, Almelo, Overijssel, Netherlands (I20271) Birth 1890 -- Almelo, Almelo, Overijssel, Netherlands
 
 - Unknown children 
 
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 Willem Frederik Jacob Brouwer
 - Hermina Johanna Antoineta Elisabeth Kooij  (I06018) Birth 1891 -- Groningen, Groningen, Groningen, Netherlands (I06018) Birth 1891 -- Groningen, Groningen, Groningen, Netherlands
  
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  Marriage  9 September 1918   -- Groningen, Groningen, Groningen, Netherlands Marriage  9 September 1918   -- Groningen, Groningen, Groningen, Netherlands
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 Hermina Johanna Antoineta Elisabeth Kooij
 - Willem Frederik Jacob Brouwer  (I06019) Birth 5 December 1894 -- Onderdendam, Bedum, Groningen, Netherlands (I06019) Birth 5 December 1894 -- Onderdendam, Bedum, Groningen, Netherlands
 
 - Unknown children 
 
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 Christiaan Engelbertus van Dam
 - Ida Carolina Helena Kooij  (I06020) Birth 1896 -- Groningen, Groningen, Groningen, Netherlands (I06020) Birth 1896 -- Groningen, Groningen, Groningen, Netherlands
  
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  Marriage  11 August 1919   -- Groningen, Groningen, Groningen, Netherlands Marriage  11 August 1919   -- Groningen, Groningen, Groningen, Netherlands
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 Ida Carolina Helena Kooij
 - Christiaan Engelbertus van Dam  (I06021) Birth 8 June 1894 -- Utrecht, Utrecht, Utrecht, Netherlands (I06021) Birth 8 June 1894 -- Utrecht, Utrecht, Utrecht, Netherlands
 
 - Unknown children 
 
 
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 Grietje Kleima
 Abel Kooij
 Hilje Kooij
 Harmina Kooij
 Harm Kooij- Jan Kooij  (I06003) Birth 1853 -- Garnwerd, Ezinge, Groningen, Netherlands (I06003) Birth 1853 -- Garnwerd, Ezinge, Groningen, Netherlands
 Death 28 February 1907 (Age 54) -- Garnwerd, Winsum, Groningen, Netherlands
  
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  Marriage  29 April 1876   -- Zuidhorn, Zuidhorn, Groningen, Netherlands Marriage  29 April 1876   -- Zuidhorn, Zuidhorn, Groningen, Netherlands
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 Jan Kooij
 Abel Kooij
 Hilje Kooij
 Harmina Kooij
 Harm Kooij- Grietje Kleima  (I06004) Birth 22 June 1854 -- Zuidhorn, Zuidhorn, Groningen, Netherlands (I06004) Birth 22 June 1854 -- Zuidhorn, Zuidhorn, Groningen, Netherlands
 Death 14 February 1917 (Age 62) -- Zuidhorn, Zuidhorn, Groningen, Netherlands
 
 - Number of Children: 4 
 - Abel Kooij  (I20555) Birth 23 January 1877 -- Hoogkerk, Groningen, Groningen, Netherlands (I20555) Birth 23 January 1877 -- Hoogkerk, Groningen, Groningen, Netherlands
 Death 2 March 1905 (Age 28) -- Garnwerd, Winsum, Groningen, Netherlands
  
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 Hinderikus Kremer
 - Hilje Kooij  (I06022) Birth 5 December 1878 -- Hoogkerk, Groningen, Groningen, Netherlands (I06022) Birth 5 December 1878 -- Hoogkerk, Groningen, Groningen, Netherlands
  
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  Marriage  24 April 1908   -- Ezinge, Winsum, Groningen, Netherlands Marriage  24 April 1908   -- Ezinge, Winsum, Groningen, Netherlands
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 Hilje Kooij
 - Hinderikus Kremer  (I06023) Birth 23 March 1877 -- Garnwerd, Ezinge, Groningen, Netherlands (I06023) Birth 23 March 1877 -- Garnwerd, Ezinge, Groningen, Netherlands
 
 - Unknown children 
 
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 Willem Djurre Siccama
 - Harmina Kooij  (I06026) Birth 4 August 1891 -- Garnwerd, Ezinge, Groningen, Netherlands (I06026) Birth 4 August 1891 -- Garnwerd, Ezinge, Groningen, Netherlands
  
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  Marriage  31 March 1920   -- Ezinge, Winsum, Groningen, Netherlands Marriage  31 March 1920   -- Ezinge, Winsum, Groningen, Netherlands
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 Harmina Kooij
 - Willem Djurre Siccama  (I06027) Birth 8 September 1891 -- Ruigezand, Oldehove, Groningen, Netherlands (I06027) Birth 8 September 1891 -- Ruigezand, Oldehove, Groningen, Netherlands
 
 - Unknown children 
 
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 Catrina Anna Siccama
 - Harm Kooij  (I06024) Birth 6 March 1893 -- Garnwerd, Ezinge, Groningen, Netherlands (I06024) Birth 6 March 1893 -- Garnwerd, Ezinge, Groningen, Netherlands
  
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  Marriage  27 June 1919   -- Aduard, Zuidhorn, Groningen, Netherlands Marriage  27 June 1919   -- Aduard, Zuidhorn, Groningen, Netherlands
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 Harm Kooij
 - Catrina Anna Siccama  (I06025) Birth 5 February 1893 -- Den Ham, Aduard, Groningen, Netherlands (I06025) Birth 5 February 1893 -- Den Ham, Aduard, Groningen, Netherlands
 
 - Unknown children 
 
 
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 Klaas Tiessens
 Henderika Tiessens- Kunje Kooij  (I06009) Birth 2 January 1855 -- Saaksum, Oldehove, Groningen, Netherlands (I06009) Birth 2 January 1855 -- Saaksum, Oldehove, Groningen, Netherlands
 Death 9 October 1944 (Age 89)
  
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  Marriage  17 May 1878   -- Zuidhorn, Zuidhorn, Groningen, Netherlands Marriage  17 May 1878   -- Zuidhorn, Zuidhorn, Groningen, Netherlands
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 Kunje Kooij
 Henderika Tiessens- Klaas Tiessens  (I06010) Birth 17 May 1853 -- Ezinge, Winsum, Groningen, Netherlands (I06010) Birth 17 May 1853 -- Ezinge, Winsum, Groningen, Netherlands
 Death 7 September 1907 (Age 54) -- Oldehove, Zuidhorn, Groningen, Netherlands
 
 - Number of Children: 1 
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 Jacobus Eelkman Rooda
 Lijna Rooda- Henderika Tiessens  (I06028) Birth 6 June 1880 -- Ruigezand, Oldehove, Groningen, Netherlands (I06028) Birth 6 June 1880 -- Ruigezand, Oldehove, Groningen, Netherlands
 Death 3 November 1930 (Age 50) -- Zuidhorn, Zuidhorn, Groningen, Netherlands
  
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  Marriage  27 October 1911   -- Zuidhorn, Zuidhorn, Groningen, Netherlands Marriage  27 October 1911   -- Zuidhorn, Zuidhorn, Groningen, Netherlands
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 Henderika Tiessens
 Lijna Rooda- Jacobus Eelkman Rooda  (I06029) Birth 16 June 1883 -- Middlestum, Loppersum, Groningen, Netherlands (I06029) Birth 16 June 1883 -- Middlestum, Loppersum, Groningen, Netherlands
 Death 25 June 1954 (Age 71) -- Groningen, Groningen, Groningen, Netherlands
 
 - Number of Children: 1 
 
 
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 Jakob Zetsma
 Bernard Zetsma- Bouktje Kooij  (I06011) Birth 14 July 1855 -- Saaksum, Oldehove, Groningen, Netherlands (I06011) Birth 14 July 1855 -- Saaksum, Oldehove, Groningen, Netherlands
 Death 26 November 1918 (Age 63) -- Oldehove, Zuidhorn, Groningen, Netherlands
  
 1 . 4
  Marriage  20 July 1882   -- Zuidhorn, Zuidhorn, Groningen, Netherlands Marriage  20 July 1882   -- Zuidhorn, Zuidhorn, Groningen, Netherlands
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 Bouktje Kooij
 Bernard Zetsma- Jakob Zetsma  (I06012) Birth 11 September 1853 -- Pieterzjil, Zuidhorn, Groningen, Netherlands (I06012) Birth 11 September 1853 -- Pieterzjil, Zuidhorn, Groningen, Netherlands
 Death 9 September 1940 (Age 86) -- Groningen, Groningen, Groningen, Netherlands
 
 - Number of Children: 1 
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 Jannetje Reijne
 - Bernard Zetsma  (I06030) Birth 16 February 1895 -- Adorp, Winsum, Groningen, Netherlands (I06030) Birth 16 February 1895 -- Adorp, Winsum, Groningen, Netherlands
 Death 21 May 1939 (Age 44) -- Ruigezand, Oldehove, Groningen, Netherlands
  
 1 . 4 . 1
  Marriage  1 November 1935   -- Beemster, Noord-Holland, Netherlands Marriage  1 November 1935   -- Beemster, Noord-Holland, Netherlands
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 Bernard Zetsma
 - Jannetje Reijne  (I06031) Birth 3 October 1911 -- Driehuizen, Noord-Holland, Netherlands (I06031) Birth 3 October 1911 -- Driehuizen, Noord-Holland, Netherlands
 Death 3 October 1980 (Age 69) -- Leens, De Marne, Groningen, Netherlands
 
 - Unknown children 
 
 
 - Fridzer Kooij  (I06000) Birth 1857 -- Oldehove, Zuidhorn, Groningen, Netherlands (I06000) Birth 1857 -- Oldehove, Zuidhorn, Groningen, Netherlands
 Death 12 February 1858 (Age approx. 1 year) -- Oldehove, Zuidhorn, Groningen, Netherlands
  
 1 . 5
 - Geertruid Kooij  (I06001) Birth September 1862 -- Oldehove, Zuidhorn, Groningen, Netherlands (I06001) Birth September 1862 -- Oldehove, Zuidhorn, Groningen, Netherlands
 Death 13 October 1862 (Age approx. 1 month) -- Oldehove, Zuidhorn, Groningen, Netherlands
  
 1 . 6
 - Wrister Kooij  (I06002) Birth 1864 -- Oldehove, Zuidhorn, Groningen, Netherlands (I06002) Birth 1864 -- Oldehove, Zuidhorn, Groningen, Netherlands
 Death 22 May 1871 (Age 7) -- Oldehove, Zuidhorn, Groningen, Netherlands
  
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