The father of Willem Schoemaker is Hendrik Schoemaker born 20 Aug 1890 in Oldemark, Overijssel, Holland. The mother of Willem is Johanna Elisabeth Niehaus born 19 May 1896 in Burgsteinfurt, Germany. I am Henk Schoemaker, my father is Wouter Schoemaker (1922), he is a brother of Willem. I ask my father for more information en let you no. I am living in Andijk. Thank you.