Kurt Ball (1891–1976) was a lawyer in Berlin who specialised in tax law. After the establishment of the Nazi dictatorship, he advised Jews who wanted to emigrate and served as an advisor to the Reichsvertretung der Deutschen Juden (Reich’s Deputation of the German Jews). In the aftermath of the anti-Jewish riots of 9–10 November 1938, he was arrested by the Gestapo on 11 November and held until 16 December in the Sachsenhausen concentration camp. After four years of effort, he left Germany on 23 December 1938 for Palestine. Beginning in 1944, he began to gather reports from Jews on Nazi Germany. These materials gave rise to various publications in the post-war period as well as the work with contemporary witnesses at the Yad Vashem memorial site. Ball changed his name to Ball-Kaduri. He died in Tel Aviv in 1979.