Timeline Chart

Male  Albert Harm Marten Pieter Koolhof

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Female  Helena Harmina Bartelds

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1902--
1904--
1908--
1912--
1916--
1920--
1924--
1928--
1932--
1936--
1937--
Birth--3 February 1907 - Winschoten, Winschoten, Groningen, Netherlands
Birth--10 May 1909 - Winschoten, Winschoten, Groningen, Netherlands
Marriage--23 May 1932 - Winschoten, Winschoten, Groningen, Netherlands (Age 23)
Marriage--23 May 1932 - Winschoten, Winschoten, Groningen, Netherlands (Age 25)