Looking for children of Herman & Louise Neuman-n Bach who married 1874 in Chicago at Bethlehem Lutheran.

Ida was born about 1878 per 1880 Chicago Census & Martha Caroline Louise was born April 25, 1884 per birth cert in Appleton, Outagamie County,Wisconsin & baptised May 18, 1884 in Appleton,Wi. No birthdate is listed on her baptismal cert. nor are sponsors listed. I looked for additional children in church records & none were listed-same for births at courthouse.
Herman does show up in Nov 1882 as a wedding witness in Louises sisters wedding in Appleton, Wisconsin.

We believe there may be more children born most likely in Chicago. Herman died Feb 1900 in Chicago & Louise seems to have disappeared from 1900 census. She was born abt 1857 W Prussia.

We also believe Louise remarried to a Charles or Herman Schulz sometime after 1900 & resided in Chicago in 1914 to 1934.

Any help appreciated,

Thank you so much,
Kathy