Matthias married Eva Elisabetha Riedel on 4 Jun 1792 in Eußerthal, Pfalz, Bayern. Eva (daughter of Peter Riedel and Elisabetha Strauss) was born on 22 Feb 1767 in Eußerthal, Pfalz; died on 13 Jun 1823 in Bundenthal, Pfalz, Bayern. [Group Sheet] [Family Chart]

1. Johannes Stephan Klein was born on 7 Dec 1792 in Eußerthal, Pfalz, Bayern; was christened on 7 Dec 1792 in Eußerthal, Pfalz, Bayern.
2. Johannes Michael Klein was born on 17 Sep 1796 in Eußerthal, Pfalz, Bayern; was christened on 17 Sep 1796 in Eußerthal, Pfalz, Bayern; died on 1 Oct 1851 in Bundenthal, Pfalz, Bayern.
3. Philipp Klein was born on 26 Sep 1797 in Eußerthal, Pfalz, Bayern; was christened on 26 Sep 1797 in Eußerthal, Pfalz, Bayern; died on 2 Aug 1854 in Bundenthal, Pfalz, Bayern.
4. Simon Klein was born on 6 Jun 1799 in Eußerthal, Pfalz; was christened on 6 Jun 1799 in Eußerthal, Pfalz; died on 20 Feb 1869 in Schindhard, Pfalz, Bayern.
5. Maria Anna Klein was born on 19 Apr 1802 in Eußerthal, Pfalz; was christened on 19 Apr 1802 in Eußerthal, Pfalz; died on 13 Dec 1865 in Bundenthal, Pfalz, Bayern.
6. Johannes Adam Klein was born in 1808 in Bundenthal, Pfalz.