I found no record of either ZETTLER in Missouri. I would strongly recommend that you post to a board in Missouri - not in Wisconsin - unless you have some connection to this county that you are not mentioning in your email.

St. Louis, Missouri Marriages, 1804-76
Name Spouse Marriage Date Volume/Page
Hermine Reuter Ernst Zettler 7 Nov 1868 14-005
Ernst Zettler Hermine Reuter 7 Nov 1868 14-005

St. Louis City Death Records, 1850-1908
Name Death Date Birth Place Cemetery Address
Gottlieb Zettler 10 Jun 1901 1518 Mc Laran

1880 United States Federal Census
Name Age in 1880 Est. Birth Year Birthplace Relation to head-of-house Marital Status Race Gender Home in 1880 (City, County, State)
Jas. B. ZETTLER 19 <1861> Ohio Other Single White Male St. Louis, St. Louis, MO
Albert ZETTLER 41 <1839> BADEN Brother Single White Male St. Louis, St. Louis, MO
Clara ZETTLER 8 <1872> Missouri Dau Single White Female St. Louis, St. Louis, MO
Hyman ZETTLER 42 <1838> BADEN Self Married White Male St. Louis, St. Louis, MO
Hyman ZETTLER 6 <1874> Missouri Son Single White Male St. Louis, St. Louis, MO
Louisa ZETTLER 28 <1852> HANOVER Wife Married White Female St. Louis, St. Louis, MO
Louisa ZETTLER 10 <1870> Missouri Dau Single White Female St. Louis, St. Louis, MO
Mantra ZETTLER 2 <1878> Missouri Dau Single White Female St. Louis, St. Louis, MO
Oscar ZETTLER 3 <1877> Missouri Son Single White Male St. Louis, St. Louis, MO

Social Security Death Index
Name Birth Date Death Date Last Residence (City,County,State) Issued SSN
EVELYN ZETTLER 22 Feb 1908 Sep 1981 Lawndale, Los Angeles, CA MO (Before 1951) 499-03-7162
FREDRIC H ZETTLER 13 Feb 1933 16 Apr 1998 MO (1951 And 1952) 496-36-4072
JAMES ZETTLER 20 Sep 1944 Jul 1978 Nevada, Vernon, MO MO (1973) 498-68-2768
ROLAND ZETTLER 5 Oct 1920 Jan 1978 Saint Louis, Saint Louis, MO MO (Before 1951) 499-28-6712
RUTH ZETTLER 1 Jul 1910 16 Mar 1998 Saint Louis, Saint Louis, MO MO (Before 1951) 488-03-0235
SHERMA ANN H ZETTLER 25 Jun 1934 18 Jan 1999 Saint Louis, Saint Louis, MO MO (1952 And 1953) 493-38-0856
VALENTINE ZETTLER 14 Jan 1885 Nov 1963 MO (Before 1951) 492-03-3482

I am not related to nor have any additional information on these surnames. If there is a question of error in this transcription, please consult the original documents.
R/S MAK http://www.rootsweb.com/~wiwood