in 1961 in Rotterdam. Abram, Izaak and Jacob are common first names in Dutch Protestant churches, chosen from the Hebrew Bible, next to New Testament names. Abram and Izaak Fles belonged to the Nederlands Hervormde Kerk (Dutch Reformed Church), just like their father Izaak, a brother to Halsema's greatgrandfather Cornelis Fles, and their grandfather was. Halsema's family tree in the maternal line shows, that all ancestors in this family Fles since the start of the 18th century were baptised in Leiden, a historical stronghold of Protestantism in the Netherlands. Before, in the 17th century all ancestors were baptised in Roman Catholic churches as was their first known forefather Johannes Fles (Flessinghe), born ca. 1640 in Sarbrug (Saarbrücken, Germany), who settled in Leiden, in Holland. Several Jewish families surnamed Fles have lived in Amsterdam, Enschede en Rotterdam. They suffered heavily from the Nazi persecution of the Jews under the German occupation of the Netherlands. Most of these families were deported to Auschwitz and Sobibor and murdered. Very few returned or survived in hiding. But the family of Amsterdam's Mayor Halsema does not share in these traumatic events. Dutch historian Bart Wallet included Femke Halsema in a chapter on contemporary Dutch Jewry in an entirely revised edition (2017) of “Geschiedenis van de joden in Nederland" ("History of the Jews in the Netherlands"). But after some genealogical research in 2020 Wallet published an article in the Dutch Jewish internet magazine Jonet "Waarom Femke Halsema toch niet joods is" ("Why Femke Halsema is not Jewish after all"), admitting his mistake, indicating he will correct this in the next edition of this book. The article was reprinted in the Dutch Nieuw Israëlitisch Weekblad (New Israelitic Weekly). Career before politics In 1983, Halsema graduated from the Kottenpark-college in Enschede with a Havo-diploma. Between 1984 and 1985 she attended the Vrije Hogeschool (teachers program for Waldorf schools) in Driebergen. In 1985 she started training as a Dutch and history teacher in Utrecht. In 1988 she left her training without graduating. After that she worked for a year in a Utrecht café. She then started studying general social sciences at Utrecht University, specialising in criminology. During these studies she had a number of jobs related to her specialisation. Between 1991 and 1993, she was an intern at the working group "police and immigrants" at the Ministry of the Interior and she was a student assistant for professor Frank