Head of medical service near Jewish Military Organization headquarters (ZZW). Treated the wounded in Muranowski Square battles, survived.
In file: Statement by Yosef Tzalmeister about activity of Henryk Iwanski (Bystry) to save Jews of Warsaw ghetto and transfer them to Aryan side (Polish and Hebrew translation). Statement by Roman Dinberovsky about assistance offered by Yosef Tzalmeister to prisoners in Auschwitz (Polish). Testimony from his mouth (Polish), published in book 'The Masada of Warsaw' by Haim Lazar.