For anyone returning to this thread, there are a couple of Teichmann entries in the current index called: "Milwaukee's German Newspapers; an index of death notices and related items", covering 1844-1950: Alvin, Ernst Ferdinand, Gustav, Mary (née Klenk), Selma Krause (née Teichmann).
Full entries are freely available from the compiler/editor.
gary.rebholz@gmail.com