"... Lewis or Ludwig Federman (b. 1819 Germany) and Rosina Wunderlich (b. 1824 Bavaria/Bayern). They came to the USA in 1847 and settled in Milwaukee. ... Catherine Federman (b. 1858) who married William Wegner."
There are family death notices for a Louis Federmann (+ obit.) and Rosina Federmann (née Wunderlich) found in local German papers. I've indexed those clippings, and this entry for an obit.: Katherina Wegner, née Feddersen, 89 yr.
It's not unusual for mistakes to be found in a death notice or obituary in these papers, or maybe this Wegner entry is a close coincidence.
Gary Rebholz, originator/compiler/editor
The indexing has continued since 2007 ...
"Milwaukee's German Newspapers; an index of death notices and related items" (1844-1950).