High school, grammar, and elementary students moved there from the Glasgow Street location in September 1886.

In 1888, Portsmouth High School was formally established but continued to be housed in the Green Street building.

Portsmouth High School moved to a brand new building on Washington Street in 1909.

[2] The school, along with others in the area, has recently become noted for its high dropout rates.

[12][13][14][15][16] In 2020, residents initiated the petition to abolish the use of Wilson's name and change the name to Manor.