Maurycy Orzech

Orzech was summoned by Judenrat president Adam Czerniaków and asked that the Bund cease circulating its illegal newspapers.

[7] However, Orzech correctly surmised that the newspapers were just an excuse and that the mass executions were simply the first step in total extermination of Warsaw's Jews.

[7] Orzech also wrote bulletins and proclamations to the residents of the ghetto not to trust the Germans and not to volunteer for supposed "labor in Germany" from the Umschlagplatz (which was in fact a collection point for deportation to the Treblinka extermination camp)[7] Most likely he was one of the organizers of the Antifascist Block (a group representing leftist Zionist and secular Jewish groups) and served as the Bund's representative at its conferences.

[8] He, along with Leon Feiner, wrote the telegram which informed the Bundist member of the Polish government in Exile, Szmul Zygielbojm, about the outbreak of the Warsaw Ghetto Uprising.

According to some sources he was arrested during an attempt to cross the Romanian border, brought back to Warsaw where he was placed in Pawiak prison, and killed in August 1943.