Saartje Wijtvliet was a daughter of Alida Velleman and the non-Jewish Everhardus Wijtvliet. She was a pre’marital child, born on 14 May 1920 in Rotterdam, but at the time of the marriage of her parents on 7 July 1920 in Haarlem, “with the consent of the mother, recognized by the father as his daughter”. Saartje had a brother Everhardus Jacobus, who was born in 1921 and also a little sister Grietje…