Family tree Hemelop » Willem Frederik den Os

Personal data Willem Frederik den Os 


    Household of Willem Frederik den Os

    He is married to Maartje van Helden.

    They got married


    Child(ren):


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    Ancestors (and descendant) of Willem Frederik den Os

    Willem Frederik den Os


    Maartje van Helden

    Wilhelmina Johanna den Os
    1885-1936

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    The Family tree Hemelop publication was prepared by .contact the author
    When copying data from this family tree, please include a reference to the origin:
    A. Hemelop en H.Hemelop, "Family tree Hemelop", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-hemelop/I8917.php : accessed February 6, 2026), "Willem Frederik den Os".