Rahel Zwang was five months old, when her parents brought to the Neu-Isenburg Home of the Jewish Women's Association for three months. Rachel was a cousin of Eva Irene Oettinger, who had been educated in "Heim Isenburg" May 1937 to April 1938 (see reference "Christoph Knüppel").

Rahel's parents, the household assistant Nelly Zwang and Walter Oettinger, who had learned a farming profession, lived in Stuttgart. Walter Oettinger worked a gardener. Nelly and Walter married only after Rachel's birth, on June 21, 1941. Shortly afterward, they were sent to a ghetto house. In this situation, they brought their daughter to Neu-Isenburg.

On October 10, 1941, the Oettinger couple moved to Haigerloch because Walter Oettinger had been obliged to work there in a sawmill. Walter, Ilse and starting of October 21 also Rahel Oettinger lived with a widow in the Haigerlocher city district Haag.

On 26 April 1942, Rahel Oettinger and her parents were deported from Stuttgart to the transit ghetto Izbica near Lublin. There their track is lost. Rahel was eight months old at the time of her kidnapping, her mother 27 and her father 20 years old.

Sources: Stadtarchiv Neu-Isenburg; Memorial Book - Victims of the Persecution of Jews under the National Socialist Tyranny in Germany 1933 - 1945 (Bundesarchiv - National Archives); Christoph Knüppel: "Denn deine Kraft ist in den schwachen mächtig"