Given name: Jerzy Family name: Jawerbaum

21 years old, short, dark-haired. He lived at Sienna Street No. 17. He denounced the Jews living outside the ghetto. Before the war he came in Warecka Street. He co-operated with Anders and Thill. On 20 July 1941(?) he was in "Casanowa" in the hotel Britania with Irka Okon, Anders, Mietek Thung, Nina Wygodzka.