[3] In addition to the house, the Park includes the birthplace and childhood home of President Andrew Johnson, the Ellen Mordecai Garden, the Badger-Iredell Law Office, Allen Kitchen and St. Mark's Chapel, a popular site for weddings.

The addition was considered a significant work of Nichols, who had also been responsible for remodeling the original building containing the State House.

Jacob Mordecai, Moses' father, founded a girls' school in Warrenton, North Carolina.

During the 19th and early 20th centuries, the Mordecai family sold off land, which was subdivided for the continuing expansion of Raleigh.

(The adjacent Oakwood Cemetery, chartered in 1869, became the namesake of the large suburb that developed in the adjoining wooded land, which was earlier known as Mordecai Grove.

Mordecai descendants owned the mansion property until 1967, when the house and its surrounding block were put on the market.

Since 2017, Mordecai Historic Park's exclusive paranormal research team has been The Ghost Guild Inc., a registered nonprofit organization that investigates the house[10][11] and its surrounding buildings[12] at least three times per year.