Oconomowoc--"the Newport of the West"--was a summer home and tourist destination for Milwaukee, Chicago, and St. Louis families of prominence from the 1870s through the 1930s. Names like Pabst, Miller, Armour, and Ward built sprawling mansions along the shores of Lac La Belle. They arrived by train every summer to Oconomowoc's stone railroad depot, a popular restaurant today, which is listed on the National Register of Historic Places. According to...