Charles Smith Hamilton was a career United States Army officer who served with distinction during the Mexican–American War. He also served as a Union Army general during the early part of the American Civil War. After the war, he was appointed U.S. marshal for the Eastern District of Wisconsin by President Ulysses S. Grant, and served as president of the University of Wisconsin Board of Regents.

Fond du Lac is a city in and the county seat of Fond du Lac County, Wisconsin, United States. The population was 44,678 at the 2020 census. The city forms the core of the Fond du Lac metropolitan statistical area, which includes all of Fond du Lac County. Fond du Lac is the 348th-largest metropolitan area in the United States.