"I am looking for any and all information regarding the Duers who settled in Milwaukee, Milwaukee County, Wisconsin. I know some descendents still live in the area."
Would the spelling also be Duerr Dürr and Durr? There are about 55 combined entries or references of those spellings (but no Duer) found in the current version of "Milwaukee's German Newspapers; an index of death notices and related items" (1844-1950). These range from the 1860s - 1930s. Like many valuable research resources, these newspapers and the index referenced here are not online.
Gary Rebholz, compiler/editor
Indexing Milwaukee's German newspapers continuously since 2007... helping family researchers collect evidence of our historic German-American culture.