Of the people matching P* Pilicer, Pinkus was the only one of the appropriate age to have attended School #3.
I matched Pinkus to his family via matching addresses. Pinkus lived with his mother (Chaja, b. 1900), and siblings Chana (b. 1923), Rajzla/Reizla (b. 1924), Marjem (b. 1930) , and Szejna (b. 1935).
Chana and Rajzla/Reizla both have two records, both of which have one address set that matches Pinkus's and the other that includes a separate address at Hanseaten.
Of all the family, Szejna is the only one that does not have death/deportation information listed with her. All of the family members, except Szejna, died on the same date- March 9, 1943. There is no deportation associated with this date, but I do think it rather strange that all of them died on the exact same date without providing deportation information or some other logical reason. The only one that has a cause of death is Chaja, who died of pulmonary tuberculosis.