To anyone returning to this thread, there are some Lexow names found in the new local resource: "Milwaukee's German Newspapers; an index of death notices and related items". The index covers 1844-1950. There are entries for John, Fritz, Friedrich and others that may match this thread.
If you've collected more death date information since these original postings, the index is particularly helpful to your research. Contact me directly for look-ups in the current data.
Gary Rebholz
Milwaukee Wis.
gary.rebholz@gmail.com