During World War I, the family moved from Poland to Belgium, and from there to Switzerland where her three siblings, Rose Warfman, Hedwig [Heidi], and Salomon Gluck were born, then to Germany, and finally to France, where they became citizens.
In June 1940, Feuerwerker moved to Brive-la-Gaillarde where her husband was the rabbi of three French Departments : Corrèze, Creuse, and Lot.
Together with Germaine Ribière, who was later recognized as a Righteous Among the Nations, she organized the evacuation of young people hunted by the Nazis.
[citation needed] In the last months of World War II, she hid in a Catholic convent with her baby daughter, Atara, surviving on potatoes and water.
Her brother, a 29-year young physician, Dr. Salomon Gluck, was deported from France on the convoy 73, led to Kaunas in Lithuania and Reval (Tallinn) in Estonia, never to return.
As a Combattante Volontaire de la Résistance (Voluntary Combatant of the Resistance), she received the French Liberation Medal.