The Miller House is a Queen Anne-style residence that was built in 1904 for tanner John W. Miller. John W. Miller, like his grandfather James Miller and father John C. Miller, worked for Miller Tanning & Extract Co. The family business had patented the method of extracting tannin from hemlock to tan leather, and was drawn to Miramichi because of the abundance of hemlock timber stands there. Ultimately, the company expanded to the United States, Turkey, and Hungary. Miller founded the joint venture Millerton Extract Co. in 1912, and the Miramichi community of Millerton is named after him.
 
Ellen Creaghan, the wife of merchant John Daniel Creaghan, purchased the house in 1918. John was an entrepreneur who ran a network of family-owned New Brunswick stores. He was also an active member of the community, serving on Newcastle's first Town Council, founding the Miramichi Agricultural Exhibition Association and acting as county chairman of the wartime victory bond. He was also director and vice president of the Miramichi Steam Navigation Co. The Creaghan family would stay in the house for three generations. Donald S. Creaghan, John's son, inherited the house and raised his children there. Donald became Vice-Consul to Norway and Sweden in addition to being the Mayor of Newcastle. For several decades, Donald's son John D. would run the family business and the local stores. John D. spent his entire life at the Miller House.
 
Beyond its tenants, this house is a good example of Queen Anne architecture in the 20th century. Its most notable features are a tower at each side of the front façade and a veranda that stretches the length of the house.