The Parish of Chatham covers the south-east section of the City of Miramichi. It includes St. Mary's in the area formerly known as Chatham and St. Paul's in the area commonly known as Lower Chatham Head or Bushville.
The original St. Mary's was built in 1837 but destoyed by fire. The current building was built in 1971.
The congregations seek to know Christ and to make him known.