Given name: Menachem Mendel Family name: Kirszenbaum

General Zionists (Zionist Organization in Poland) activist in the Warsaw Ghetto. One of the directors of the American charity - the Joint (American Jewish Joint Distribution Committee). A member of the Coordinating Commission of the Jewish Fighting Organisation (ZOB). Crossed to the 'Aryan side' in January 1943. Killed at Pawiak.