Gender: girl
School:
School #8B
Pola sounds sort of similar to Perla, and Hena Perla was the only result that came up in a fuzzy search for P* Dobrysz. In addition, her birthdate made her the right age to attend School #8B.
As far as I can tell, Pola had no siblings, and lived with her parents Boruch (b. 1900) and Michla (b. 1898).
There was a number missing on the year of Pola's deportation (15.3.4), but the month and date matched Michla's (15.3.42), so I assumed that the year matched as well. Michla and Pola were deported, then, on March 15, 1942, during the month of daily deportations to Chelmno. Boruch died of currently unknown causes on November 16, 1941.