The are about 50 Preiss & 290 Graf / Graff entries or references found in my current data, but not de Smit, Kalthof, Klause or Hesmig. You're welcome to use my out-dated index in the library, or contact me to verify specific names with their dates.
Indexing Milwaukee's German newspapers continuously since 2007 ...
Gary Rebholz, compiler/editor
"Milwaukee's German Newspapers; an index of death notices and related items" (1844-1950).