I've indexed an family death notices or obits. matching your posting found local German papers: Maria Dickmann (65 yrs.), survived by a Theodor; Marie Eliz. Dickmann (nee Hermann); Theodor (75 yr). These are collected in the local resource "Milwaukee's German Newspapers; an index of death notices and related items" (1844-1950). There are over 50 Dickmann family related entries.
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Indexing of these papers started in 2007 and continues today.