Katharina married Johannes Daniel Opp about 1866. Johannes (son of Daniel Opp and Karolina Katharina Mettler) was born on 23 Mar 1842 in Kassel, Odessa, Ukrayina; died on 6 Jun 1916 in Eureka, McPherson County, South Dakota, USA; was buried in Glueckstahl Cemetery, McPherson County, South Dakota, USA. [Group Sheet] [Family Chart]

1. Jacob D. Opp was born on 25 Apr 1870 in Odessa, Ukrayina; died on 10 Apr 1961 in Eureka, McPherson County, South Dakota, USA.
2. Daniel Opp was born on 10 Jul 1872 in Kassel, Odessa, Ukrayina; died on 16 Dec 1956 in Leola, McPherson County, South Dakota, USA.
3. Katharina Opp was born on 26 Jul 1874 in Kassel, Odessa, Ukrayina; died on 10 Apr 1964 in Eureka, McPherson County, South Dakota, USA; was buried in Glueckstahl Cemetery, McPherson County, South Dakota, USA.
4. Johannes Daniel Opp was born on 3 Feb 1877 in Kassel, Odessa, Ukrayina; died on 11 Nov 1953 in Eureka, McPherson County, South Dakota, USA.
5. Christian D. Opp was born on 24 Nov 1881 in Kassel, Odessa, Ukrayina; died on 12 Jul 1963 in Eureka, McPherson County, South Dakota, USA; was buried in Eureka Cemetery, McPherson County, South Dakota, USA.
6. Frederick D. Opp was born on 28 May 1886 in Eureka, McPherson County, South Dakota, USA; died on 5 Jan 1975 in Eureka, McPherson County, South Dakota, USA.
7. Henry D. Opp was born on 27 Apr 1888 in Eureka, McPherson County, South Dakota, USA; died on 9 Aug 1972 in Lodi, San Joaquin County, California, USA.
8. Rosina Opp was born on 22 Jan 1890 in Eureka, McPherson County, South Dakota, USA; died on 1 Sep 1969 in Eureka, McPherson County, South Dakota, USA.
9. Christina Opp was born on 1 Dec 1891 in Eureka, McPherson County, South Dakota, USA; died in 0May 1983 in Portland, Multnomah County, Oregon, USA.

Friedrich married Anna Maria Klein. Anna was born on 2 Jan 1811 in Odessa, Ukrayina; died on 25 Feb 1852 in Odessa, Ukrayina. [Group Sheet] [Family Chart]