Gender: boy
School:
School #20A
In a search for B* Komornik, Ber's name was the only one that came up. In addition, his birthdate made him the appropriate age to have attended School #20A.
I connected Ber to his family via matching addresses. Ber lived with his mother Szosia (b. 1906) and his siblings Chaja (b. 1927), Iser (b. 1932, perhaps a twin?), and Jacob (b. 1928).
With the exception of Iser, who has no information listed regarding his fate, all the other family members were deported on March 30, 1942, during the month of daily deportations to Chelmno.