The museum has the only gallery in the world dedicated solely to the work of the 19th-century American painter George Inness, who lived in Montclair from 1885 to 1894 and painted in the area. MAM's Inness paintings are, according to one critic, "the crown of the Montclair Art Museum's collection". The intimate George Inness Gallery displays selected works from the museum's 21 Inness paintings, two of his watercolors, and an etching by the artist. It also features the work of sculptor William Couper, who lived in Montclair for fifteen years while sculpting and for another thirty in retirement.