A third story was added in the early 20th century.

A second story was added to the school in 1907.

In 1853, a second story was added to the building.

A third story was added to the building in the 1940s.

A second story was added to the main building between 1848 and 1858.

The third story was added to the building in 1823.

Two more stories were later added to the building in 1921.

Later, two stories were added at the top of the building.

A second story was added in 1928, when it became a four year high school.

In 1966 a third story was added at a cost of $1,245,210.