"... I'd like to find out if there are still Millonigs in Wisconsin. Grateful for any information!"
These are some Millonig names from "Milwaukee's German Newspapers; an index of death notices and related items" (1844-1950). This list represents death notices as published in urban papers, not obituary articles.
1927 - Moertl, Mary (née Millonig)
1928 - Millonig, John
1931 - Millonig, Helen (née Elward; 41 yrs)
1932 - Millonig, Elmer J. (1 yr; Joe & Rose)
1934 - Millonig, Frank 54 yrs
Gary Rebholz, compiler/editor
Indexing Milwaukee's German newspapers continuously since 2007... helping to access our historic immigrant culture.