Gender: girl
School:
School #17B
Searching for 'A* Mylnarska' under fuzzy parameters, I came up with Ajdla Mlynarska, who was born in the appropriate age range for her school and to have signed the album.
Ajdla had two relatives that I was able to connect via matching addresses: a mother, Frymeta (b. 1901); and a sister, Fajga (b. 1925). They were all deported on March 20, 1942, during the month of daily deportations to Chelmno.