School #1 was a religious school for boys in Lodz. Most students at School #1 in September 1941 were between 9 and 15 years old, meaning that they were born between 1926 and 1932.
School #1 was located at Goplánska 26. The street name was changed to Buchbinderstrasse when German occupation began in 1939. See
www.lodz-ghetto.com for a map of Goplánska and the rest of the Lodz ghetto.