Given name: Lejzer Family name: Berkowski
- YES
 - Male
 - Lejzer
 - Berkowski
 - ca. 1898
 - beginning of March 1942
 - Warszawa
 - 
                                        
                                        
From Kalisz, he died of starvation at Mila Street No. 32
 - the rich
 
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Related sources:
 
- 
                                        
                                        
Documents from the State Archive of New Records regarding
the Warsaw Ghetto - [28,, s., 27]