Johannes married Margaretha Mettler on 3 May 1838 in Odessa, Ukrayina. Margaretha (daughter of Heinrich Jakob Mettler and Anna Maria Mehlhaff) was born in 1820; died on 19 Sep 1861 in Kassel, Odessa, Ukrayina. [Group Sheet] [Family Chart]

1. Rosina Brandt was born on 6 Jul 1839 in Kassel, Odessa, Ukrayina; died on 11 Nov 1877 in Kassel, Odessa, Ukrayina.
2. Katharina Brandt was born on 14 Jun 1841 in Odessa, Ukrayina; died in 1889 in South Dakota, USA.
3. Johannes Brandt was born on 15 Sep 1845 in Kassel, Odessa, Ukrayina; was christened on 7 Oct 1845; died on 11 Sep 1916 in Omemee, Bottineau County, North Dakota, USA; was buried in Omemee Cemetery, Omemee, Bottineau County, North Dakota, USA.
4. Elisabetha Brandt was born on 19 Aug 1847 in Kassel, Odessa, Ukrayina.
5. Andreas Brandt was born on 20 Apr 1851 in Kassel, Odessa, Ukrayina; died on 5 Jan 1922 in Medicine Hat, Medicine Hat Census Division, Alberta, Canada.
6. Magdalena Brandt was born on 30 Jan 1853 in Kassel, Odessa, Ukrayina.