There are matches to some of these names in "Milwaukee's German Newspapers; an index of death notices and related items" (1844-1950), like your item: "Carl/Charles August Zuehlke (1831-1895) married to Anna Richter (1851-1914)." You would want to include the spelling Zühlke, Zülke or Zuhlke in any search.
For more specific information contact:
Gary Rebholz, compiler/editor
Indexing Milwaukee's German newspapers continuously since 2007... helping to access our historic German-American culture.