In 1984 a boundary increase was also listed on the National Register.

Included in the boundary increase are a warehouse, a manufacturing facility and a communications facility.

A boundary increase in 2001, added the already listed Alexander Wade House to the district.

The cancellation of many urban renewal plans led to the boundary increase in 1987.

A boundary increase took place in 1989.

The boundary increase that occurred on May 7, 1984 added numerous properties to the district.

The boundary increase extended the district to include Mill Street.

It was listed on the National Register in 1984, with a boundary increase in 1987.

The boundary increase added 27 contributing buildings and 1 contributing structure.

A boundary increase was added in 2005.