Johannes married Maria Johanna Kost about 1823. Maria (daughter of Johannes Jakob Kost and Maria Elisabetha Schwartz) was born on 22 Jul 1805 in Annweiler am Trifels, Pfalz; died on 3 May 1877 in Worms, Odessa, Ukrayina. [Group Sheet] [Family Chart]

1. Georg Serr was born in 1824 in Worms, Odessa, Ukrayina; died on 30 May 1836 in Worms, Odessa, Ukrayina.
2. Philipp Serr was born on 1 Jul 1827 in Worms, Odessa, Ukrayina; died on 6 Sep 1872 in Worms, Odessa, Ukrayina.
3. Nikolaus Serr was born on 11 Oct 1829 in Worms, Odessa, Ukrayina.
4. Jakob Serr was born on 3 Feb 1833 in Worms, Odessa, Ukrayina; died on 6 Mar 1907 in Scotland, Bon Homme County, South Dakota, USA; was buried in Rose Hill Cemetery, Scotland, Bon Homme County, South Dakota, USA.
5. Christoph Serr was born on 7 Jul 1835 in Worms, Odessa, Ukrayina; died on 18 Jan 1920 in Scotland, Bon Homme County, South Dakota, USA.
6. Michael Serr was born on 13 Sep 1839 in Worms, Odessa, Ukrayina; died on 19 Jul 1919 in Montana, USA.
7. Christina Serr was born on 1 Feb 1842 in Worms, Odessa, Ukrayina; died on 17 Aug 1924 in Delmont, Douglas County, South Dakota, USA.
8. Georg Peter Serr
9. Christian Serr was born on 18 Jan 1846 in Worms, Odessa, Ukrayina; died on 5 Jul 1847 in Worms, Odessa, Ukrayina.
10. Johann Serr was born on 31 Oct 1848 in Worms, Odessa, Ukrayina; died on 25 Nov 1882 in Worms, Odessa, Ukrayina.

Johannes married Anna Maria Enzminger on 18 Aug 1793 in Rhodt unter der Rietburg, Pfalz. Anna was born on 16 May 1770 in Rhodt unter der Rietburg, Pfalz; died on 4 Jul 1834 in Worms, Odessa, Ukrayina. [Group Sheet] [Family Chart]

Johannes married Maria Barbara Dachsteiner. [Group Sheet] [Family Chart]