School #7 was a school for girls in Lodz. The students in #7a attended classes in the morning. Most students were between 7 and 12 years old, meaning that they were born between 1928 and 1934.
School #7 was located at Ulica Zgierska 70. The street name was changed to Hohensteinerstrasse when German occupation began in 1939. You can read more about Ulica Zgierska at
http://www.lodz-ghetto.com/zgierska_street.html,5.