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man‎Jan Klazes Jonkman‏‎
Born ‎± 1820

Unknown relation to:

woman‎Geertje Durks van den Brug‏‎
Born ‎± 1820

Child:

1.
man‎Klaas Jonkman‏‎
Born ‎20 May 1856 Ureterp, Opsterland