Boston English has had seven locations. Its first site was on Derne Street at the rear of the Massachusetts State House and is marked by a metal plaque. Its second home was a building (still standing) at the corner of Pinkney and Anderson Streets, which eventually became the Phillips School, a school for then free born and emancipated African-Americans before the American Civil War. From 1844 to 1922, Boston English was adjacent to the Boston Latin School, first near downtown Boston and then in a building (now demolished) on Warren Street in the South End. From 1954 to 1989, Boston English was at 77 Avenue Louis Pasteur, across the street from Boston Latin (78 Avenue Louis Pasteur). This site is now part of Harvard Medical School.