Ancestry Chart:
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Koert Roelfsema
(I03631) Birth 20 April 1871 -- Veenhuizen, Onstwedde, Groningen, Netherlands
Death 12 May 1958 (Age 87) -- Onstwedde, Stadskanaal, Groningen, Netherlands
1 
2 and 3 Marriage 23 April 1870 -- Onstwedde, Stadskanaal, Groningen, Netherlands

Pedigree Tree
Descendancy Chart
Ancestry Chart
Compact Chart
Circle Diagram
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Family with spouse
Hillegien Klompmaker
Koert RoelfsemaDerk Roelfsema
(I03630) Birth 29 November 1837 -- Oudeschans, Bellingwedde, Groningen, Netherlands

2 Father 
Pedigree Tree
Descendancy Chart
Ancestry Chart
Compact Chart
Circle Diagram
Hourglass Chart
Family with spouse
Derk Roelfsema
Koert RoelfsemaHillegien Klompmaker
(I03608) Birth 20 December 1843 -- Emmen, Emmen, Drenthe, Netherlands
Death 17 June 1871 (Age 27) -- Veenhuizen, Onstwedde, Groningen, Netherlands

3 Mother 
6 and 7 Marriage 6 December 1836 -- Emmen, Emmen, Drenthe, Netherlands

Jan Berends Klompmaker
(I02948) Birth 27 February 1809 -- Sleen, Coevorden, Drenthe, Netherlands
Death 23 February 1888 (Age 78) -- Oomsberg, Onstwedde, Groningen, Netherlands

6 Grandfather 
Jantien Alberts Eefting
(I02946) Birth 1809 -- Sleen, Coevorden, Drenthe, Netherlands
Death 7 December 1874 (Age 65) -- Oomsberg, Onstwedde, Groningen, Netherlands

7 Grandmother 
14 and 15 Marriage 24 November 1798 -- Sleen, Coevorden, Drenthe, Netherlands

Albert Berends Eefting
(I02944) Birth 5 February 1764 -- Roswinkel, Emmen, Drenthe, Netherlands
Death 24 February 1827 (Age 63) -- Westenesch, Emmen, Drenthe, Netherlands

14 Great-Grandfather 
28 and 29 Marriage 6 April 1755 -- Roswinkel, Emmen, Drenthe, Netherlands

Berend Alberts
(I03113) Birth 1722 -- Sellingen, Vlagtwedde, Groningen, Netherlands
Death 21 January 1803 (Age 81) -- Roswinkel, Emmen, Drenthe, Netherlands

28 Great-Great-Grandfather 
Hindrikje Jans
(I03114) Birth 1725 -- Ter Walslage, Vlagtwedde, Groningen, Netherlands
Death 24 May 1798 (Age 73) -- Roswinkel, Emmen, Drenthe, Netherlands

29 Great-Great-Grandmother

Jantien Jansen Wilting
(I02945) Birth 23 April 1772 -- Erm, Coevorden, Drenthe, Netherlands
Death 15 March 1838 (Age 65) -- Emmen, Emmen, Drenthe, Netherlands

15 Great-Grandmother 
30 and 31


























