The entire church complex, including the rectory, convent and parish school, was added to the National Register of Historic Places in 1989.
As was common in the 19th century, the parish property included space for a cemetery, which was blessed in 1850.
There were about 600 people (mostly Irish immigrants from County Donegal) buried in the cemetery.
[2] After 1882, the city mapmakers ceased including it and the parish gradually forgot that it existed.
When a bone was found, the Massachusetts Historical Commission investigated the site and discovered the forgotten graves.