| Rudolf Gerardus van der Werff + Christina Johanna Altepost
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	| | Otto van der Werff  (I13613) 
Birth  1849   -- Martenshoek, Hoogezand, Groningen, NetherlandsDeath  14 November 1940 (Age 91)   -- Groningen, Groningen, Groningen, Netherlands
 
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	| | Agatha Stiekema  (I13612) 
Birth  7 May 1851   -- Appingedam, Appingedam, Groningen, NetherlandsDeath  17 April 1918 (Age 66)   -- Sappemeer, Hoogezand-Sappemeer, Groningen, Netherlands
 
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