Answer:
In the given lines, the pronoun "she" refers to an unidentified female character.
Step-by-step explanation:
The extract does not provide specific information about the identity of "she," but it indicates that she is thinking about old schools from the past when her grandfather's grandfather was a little boy. The focus is on her contemplation of the past and the schools that existed during that time. Without further context, the exact identity of "she" remains unknown.