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| Campbellsport 704 |
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| Campbellsport 825 |
Campbellsport, Wisconsin, is a village in Fond du Lac County on state highway 67, west of US Highway 45, and about halfway between Fond du Lac and West Bend. It has about 1800 residents.
Before Campbellsport came to be, there was Crouchville, named for Ludlow (or Ludin) Crouch a mile east of the current town. That settlement was later renamed New Cassel by immigrants from Kassel, Germany, which included Emil Brayman, who chose the name in honor of his birthplace, Hesse-Cassel.
When the railroad was to be built a mile west of that site, Stuart Campbell bought H. B. Martin's farm to establish a station there. Jacob Haessly named the new settlement Campbellsport (aka Campbell's Port and West New Cassel). Campbellsport absorbed New Cassel in 1902.