Gender: girl
School:
School #6
The only person that matched for Kuba Przedborski was Cywja Przedborska born June 25, 1925. She appears twice, once with just the birthdate of 25/1925 and addresses Kelm 21A 27 and Sulzf 52 25. She then appears with the birth date of 25/06/1925 and lived ay Kelm 21A and Pilsud 54 and she moved to Sulzf 52 on 20/10/1941. She was also deported on TR 10 on 27/02/1942.
I found Mala Przedborska nee Glajberg born 1894 and Chaja Rywka born 18/07/1924 and Estera born 08/07/ 1929. I'm guessing they are Cywja's mother and sisters. According to the secondary resources Cywja and her family was deported in February of 1942 and sent to Chelmno and killed in the gas vans.