At the turn of the 20th century, an army of workers descended upon the northwest Indiana dunes to forge a world-class steel industry for America. As a result of the mills constructed by companies such as U.S. Steel and Inland Steel, grid-like cities on the shoreline of Lake Michigan grew into prosperous steel towns, drawing workers from all over the country and beyond. The Calumet region became one of the most heavily populated and ethnically diverse...