Jakob married Margaretha Doll in 1889 in Odessa, Ukrayina. Margaretha (daughter of Joseph Doll and Maria Anna Kuntz) was born on 25 Mar 1868 in Odessa, Ukrayina; died on 4 Jul 1946 in North Dakota, USA. [Group Sheet] [Family Chart]

1. Heironimus Hellmann Hellman was born on 9 Sep 1890 in Karlsruhe, Odessa, Ukrayina; died on 26 Sep 1932 in North Dakota, USA.
2. Valentin Hellmann Helman was born on 16 Aug 1892; died on 27 Sep 1943 in Glen Ullin, Morton County, North Dakota, USA.
3. Anna Hellmann was born on 28 Dec 1895.
4. Wilhelmina Hellman was born on 22 Oct 1897 in Glen Ullin, Morton County, North Dakota, USA; died on 17 Mar 1984 in Mandan, Morton County, North Dakota, USA; was buried in Mandan Union Cemetery, Mandan, Morton County, North Dakota, USA.
5. Emilia Hellmann
6. Ernestine Hellmann
7. Rose Hellmann
8. Joseph Hellmann
9. Jacob Hellman was born on 22 Mar 1907 in North Dakota, USA; died on 2 Nov 1972; was buried in Sacred Heart Cemetery, Glen Ullin, Morton County, North Dakota, USA.