What is the main setting in the anthology, Doing Time: Notes from the Undergrad?

The central setting for this anthology is Robert E. Lee High School in Deerfield, Texas. Thomas introduced this setting in his novel Slave Day, and several of the anthology's major and minor characters first appeared in that book. This school is a base for students to depart from and return to as they fulfill their assignments. Action at the school is limited primarily to "Extension Four" because the story involves the interaction of its main volunteer, Jill Stephenson, with students in her school community.