Gender: girl
School:
School #4A
The change of address date refers to the move into the steinmetzgasse address
I believe that it is possible that Chana is Rojza's mother because they have the same last name and address. Her birthdate also makes her age appropriate to be her mother
The sibling I listed is a boy who also has the same last name and address
I also found 2 female siblings with the same last name, address and deportation dates as the other family members