Advertisements from Wisconsin city directories, 1857-1921.
- Brigham and Co’s Fond du Lac Directory for 1857-58, Fond du Lac Public Library
- Madison City Directory and Business Advertiser for 1871-2, Madison Public Library
- Wright’s Directory of Appleton for 1887-88, Appleton Public Library
- Eau Claire City Directory 1899-1900, L. E. Phillips Memorial Public Library, Eau Claire
- Wisconsin Rapids Directory, 1921, McMillan Memorial Library, Wisconsin Rapids