Gender: boy
School:
School #12B
To come up with Szapse Rauch, I searched for 'Rauch' and 'Sz*' under exact parameters, and came up with Szapse, who was born in the appropriate year range for signing the album and attending school. While there are a couple of other possible candidates (two Szymon Rajches, born in 1927 and 1928), I believe Szapse Rauch is the most likely candidate as his last name matches the exact spelling of the name in the album.
Szapse lived at Matrosen and H Goering, while Falek (b. 1888) and Mariem (b. 1926) lived at Matrosen and then Ziegel. Perhaps this means they were extended family?
They were all deported on the same date, March 30, 1942, and during the month of March 1942 there were daily deportations to Chelmno.