The Marshall and Ilsley Bank founded by Samuel Marshall and Charles Ilsley in 1849 was one of Milwaukee’s pioneer financial institutions. James Ilsley became president of his father’s bank as it rose to regional prominence by the twentieth century. The younger Ilsley built this home modeled on the Chateauesque style popularized by New York City’s trend-setting Vanderbilt family. This style befitted wealthy nouveaux riches and Ilsley, whose widow Mary continued to live here into the early 1950s after his death. This house features ogee-shaped terra-cotta hood moldings over the first-floor windows, second-story brick patterning, and an ornamental stepped brick corbel table at the eaves of the brown pressed-brick walls. Carved Gothic limestone ornament frames the dormers that punctuate the steeply pitched roof of this urban chateau.