Jakob married Katharina Stein in 1881 in Bergdorf, Odessa, Ukrayina. Katharina (daughter of Johannes Stein and Katharina Fischer) was born on 28 Jul 1859 in Bergdorf, Odessa, Ukrayina; died on 17 Feb 1931 in Java, Walworth County, South Dakota, USA. [Group Sheet] [Family Chart]