Klara Begall, known as Kläre, grew up in Berlin. After training as a shorthand typist, she was initially unemployed. She obtained a driving license and became a taxi driver in 1930. In 1938 her short marriage to Rudolf Jung ended in divorce, and she moved to a small apartment at Horstweg 28 in Berlin-Charlottenburg. In March 1943 she took in her Jewish friend Erich Bloch to save him from imminent deportation. The two had met years previously in the Romanisches Café.
Probably in May 1943, Bloch brought along two Jewish acquaintances also living in hiding, Gertrud Bruck and her then 35-year-old daughter Hildegard Grau. Kläre Jung took them both in. Since her home was too small for four people, Jung took the mother and daughter to an apartment in the adjacent building, the owner of which had left Berlin because of the bombing. Gertrud Bruck and Hilde Grau were able to stay there until the end of the war. Jung also provided them with food.
Erich Bloch also remained in his hiding place on Horstweg until Berlin’s liberation. He married his rescuer in 1955. Klara Bloch died in 1988. A school was named after her in 1992 and in 2004 a public square in Berlin-Charlottenburg.