Joint testimony of Dr. Szymon Datner, Eliasz Baumac and Kalman Barakin regarding the experiences of Jewish partisans in the Bialystok area 1. Heroic fighting by Yechiel Zeifman; fighting of the partisans in the "Kadima" regiment commanded by Sasza Suchatchevsky; death in battle of Zeigman and six other partisans in combat against the Germans and Belorussian collaborators in the Izoba forests, 25 September 1943; 2. Transfer of the youth, Wacek Birnbaum, 16, to forests together with partisans who joined "Philipov", the Jewish partisan regiment; arrival of partisans from the Warsaw area into the forests, June 1944; participation of Wacek in the Warsaw Ghetto Uprising; Wacek's fighting bravely against the Germans alongside Jewish and Soviet partisans in the forests in the Warsaw area; Wacek's joining the Red Army in Knyszyn, August 1944; disappearance of all traces of Wacek within the Red Army framework; 3. Ezra Obiedzinski's service as a teacher in Grajewo; transfer to the Bialystok Ghetto; underground activities in the ghetto; liquidation of the Bialystok Ghetto, August 1943; transfer to the killing pit with 70 Jews; escape from the killing pit to the forests; fighting against the Germans as part of the "Baumac" partisan regiment; joining the Red Army; death in battle, 1944; 4. Jankel Grajewer, born in Slonim, Poland, 1925; survives two "Aktions" in Slonim; transfer to the Bialystok Ghetto; escape to the forests; fighting against the Germans as part of the "Baumac" partisan regiment; death in battle against Wlassow men, June 1944.