He was a member of the right-wing Jewish organization Hatzohar and political leader of the Żydowski Związek Wojskowy (ŻZW – Jewish Military League) resistance organization before and during the Warsaw Ghetto uprising.
Although initially formed entirely by professional soldiers, with time it also included members of pre-war right wing Jewish-Polish parties such as Betar (among them Perec Laskier, Lowa Swerin, Paweł Frenkel, Merediks, Langleben and Rosenfeld), Hatzohar (Joel Białobrow, Dawid Wdowiński) (Political Chair), and the revisionist faction of the Polish Zionist Party (Leib "Leon" Rodal and Meir Klingbeil).
Dawid Janowski | Dawid Wdowiński | Dawid Przepiórka | Dawid Boois |
Dawid Moryc Apfelbaum (some sources give Mieczysław or Mordechaj as his second name, and Appelbaum as his surname), nom de guerre "Kowal" ("Blacksmith") (?-4/28/1943) was allegedly an officer in the Polish Army and a commander of the Jewish Military Union (Żydowski Związek Wojskowy, ŻZW), during the Warsaw Ghetto Uprising (See Dawid Wdowiński.)