Yep, there weren't that many students in the first couple of years.
A couple of rooms at one end were the administration section, the rooms at the other end were classrooms. I don't know how classes were organised, though.
And that is a cute little building; I love the porch decorations, especially the arch over the stairs and the clock and the .... I can't remember the words for the wee up and down decorative bits that echo the pillars.