Fredericka married Johannes Mehlhaff on 10 Nov 1909 in South Dakota, USA. Johannes (son of Heinrich Jakob Mehlhaff and Elisabetha Margaretha Körner) was born on 26 Jun 1866 in Kassel, Odessa, Ukrayina; died in in McPherson County, South Dakota, USA. [Group Sheet] [Family Chart]

Fredericka married Georg G. Neuhardt Neuharth on 14 Oct 1937 in Eureka, McPherson County, South Dakota, USA. Georg (son of Georg Neuhardt Neuharth and Barbara Schnabel) was born on 20 Nov 1861 in Kassel, Odessa, Ukrayina; died on 2 Mar 1958 in Eureka, McPherson County, South Dakota, USA. [Group Sheet] [Family Chart]