For anyone still researching the family in this 1998 message -- there are "Jochem" family entries found in the local resource "Milwaukee's German Newspapers; an index of death notices and related items" (1844-1950). For instance, there was a Wilhelm P. Jochem family in the Cedarburg area (neighboring Ozaukee Co.). In the 1850s a Nikolas & Catharina "Jochum" were looking for a Peter Jochum and published notices in the German papers. There are about 50 combined entries or references to Jochem Jocham Jochum surnames in the current version of the index.
I don't have any Soras spellings, references or variations indexed at this time.
I have 2 situations in my own family research where a stepfather's surname caused a lot of confusion in church and civil records as the child -- or others -- assumed the stepfather's name.
Indexing Milwaukee's German newspapers continuously since 2007 to honoring Milwaukee's historic German-American families. firstname.lastname@example.org
, originator/compiler/editor, Milwaukee Wis.