School #9 was a school for girls in Lodz. The students in #9a attended classes in the morning. Most students were between 9 and 12 years old, meaning that they were born between 1929 and 1932.
School #9 was located at Ulica Rybna 15. The street name was changed to Fischstrasse when German occupation began in 1939. You can read more about Ulica Rybna at
http://www.lodz-ghetto.com/rybna_street.html,13.