simpson street school is a historic school complex located at mechanicsburg in cumberland county, pennsylvania. the complex consists of a romanesque revival style building built in 1892, and two late gothic revival style buildings added in the 1920s. the 1892 building is square in plan, 2 1/2-stories with a raised basement. it is built pressed brick and features three ornate projecting entrances. the addition was built in two phases, in 1926 and 1929. it is two-stories and constructed of yellow brick with brownstone trim. it was used as a high school until 1957, then as a junior high until 1981, when it was sold by the school district.