The 1852 Catalog of the Lawrenceville School helpfully included a floor plan for the “school house” — the building today known as Haskell House, which served as the main classroom building from 1832 until Memorial Hall (now Woods Memorial Hall) was built in 1885.  Hamill House, built in 1814, was where boarders lived. Below you see the exterior of the School House on the left and what is now the Hamill House on the right. As you can see from the diagram of desks, the teacher sat at the back of the classroom (marked a) where he could keep an eye on the students.