The Northern Indiana Center for History includes a 38-room Victorian mansion and gardens, a cottage interpreted with 1930s interiors, a children's museum, and galleries covering local and Notre Dame history. The mansion, known as Copshaholm, was owned by J.D. Oliver, president of Oliver Chilled Plow Works. Built in 1895-96, the architecture is Romanesque Queen Anne in style, and the interior furnishings are original. Highlights include works by Bartolozzi (1725-1815), famed Italian engraver, and American sculptor Lorado Taft (1860-1936). The Dom Robotnika, erected in the 1870s, is an example of quarters like those in which factory workers from the Oliver Chilled Plow Works might have lived. Other offerings include archives, the Kidsfirst Children's Museum, the Ernestine M. Raclin Gallery of Notre Dame History, and the Voyages Gallery of Local History.
Copshaholm offers an introductory video and guided tours. The society also offers a variety of themed educational programs, covering the fur trade, Civil War, and cabin life in the 1830s. Tours are also available in the Dom Robotnika, the Worker's Home; the Kidsfirst Children's Museum; Voyages: Exploring the History of the St. Joseph River Valley; and the Ernestine M. Raclin Gallery of Notre Dame History. School programs and tours meet state educational standards.