I don't know anything about obituaries for your ancestors - I was posting about death notices, and you will find them in one of 2 libraries in the area depending on the newspaper. A local librarian told me recently that they are trained to answer these types of questions. Good luck!
"Milwaukee's German Newspapers; an index of death notices and related items" (1844-1950).
Gary Rebholz, compiler/editor
Indexing Milwaukee's German newspapers continuously since 2007... helping family researchers collect evidence of our historic German-American culture.