Here is the 1900 US Census for my 3rd great grandfather, Dudley Cass and my 2nd great grandparents, Mary (Ware) and James Hardy Cass and their daughters, Ethel and Mabel (my great grandmother).
The Cass family had moved from Hancock, Waushara County, Wisconsin to Fort Atkinson, Jefferson County, Wisconsin which is about 5 miles south of where Dudley previously had lived when his family first arrived in Wisconsin in 1847 or 1848.
Dudley was living next door with his daughter, Abbie Curtis. Dudley's wife Hannah (Birge) had passed away sometime after the 1895 Wisconsin census. The Dodge/Jefferson county genealogy website indicates Hannah died May 27, 1899.