School #10 provided classes for girls; #10B met in the afternoon. Most students at School #10B in September 1941 were between 9 and 15 years old, meaning that they were born between 1926 and 1932.
School #10 was located at Ulica Franciszkańska 13. The street name was changed to Franzstrasse when German occupation began in 1939. You can read more about and see pictures of Ulica Franciszkańska at
http://www.lodz-ghetto.com/franciszkanska_street.html,25.