Gender: boy
School:
School #20B
When "Krauze, A" is searched for, two boys and two girls comes up. This immediately narrows it to two subjects. One gives a full name, Aleksander Krauze, the other gives Mojsze Abesz Krauze, age 17.
Once I go to the JewishGen search page, and enter the surname "KRAUZE," only Aleksander is present in the Lodz Ghetto List. This makes me more sure that Aleksander was the one who signed as "A. Krauze," as his birthday is in 1930.