There were some other early Nuernberger families in the Milwaukee area: I've indexed probate notices from 1850 following the death of a John Nuernberger, survived by Margaretha and John Jr. Besides the umlauted spelling in the German newspapers there are also variations like Nuehrnberger, Nürenberger, etc. The probate court, or the paper, also spelled it Nueremberger until it was corrected.
"Milwaukee's German Newspapers; an index of death notices and related items" (1844-1950).
For more specific information contact:
Gary Rebholz, compiler/editor
Indexing Milwaukee's German newspapers relentlessly since 2007... helping to access our historic German-American culture.