Johann married Vallier, Sophia Elisabeth on 31 Jan 1845 in Evangelical Church, Ledde, Steinfurt, Nordrhein-Westfalen, Germany. Sophia (daughter of Vallier, Caspar and Hieemmelriek, Catharina Elsabein) was born on 2 Jan 1819 in Hohne, Steinfurt, Nordrhein-Westfalen, Germany; died on 26 May 1859 in Wieck, Steinfurt, Nordrhein-Westfalen, Germany; was buried on 29 May 1859 in Wieck, Steinfurt, Nordrhein-Westfalen, Germany. [Group Sheet] [Family Chart]

1. Decker, Henriette Lisette was born on 25 Jun 1854 in Wieck, Steinfurt, Nordrhein-Westfalen, Germany; was christened on 16 Jul 1854 in Evangelical Church, Ledde, Steinfurt, Nordrhein-Westfalen, Germany; and died.
2. Decker, Wilhelmina Hinrica was born on 27 Dec 1848 in Wieck, Steinfurt, Nordrhein-Westfalen, Germany; was christened on 7 Jan 1849 in Evangelical Church, Ledde, Steinfurt, Nordrhein-Westfalen, Germany; and died.
3. Decker, Wilhelm Ernst Friedrich was born on 22 Jun 1845 in Wieck, Steinfurt, Nordrhein-Westfalen, Germany; was christened on 6 Jul 1845 in Evangelical Church, Ledde, Steinfurt, Nordrhein-Westfalen, Germany; died on 21 Sep 1906 in Ledde, Steinfurt, Nordrhein-Westfalen, Germany.
4. Decker, Eberhard Friedrich Wilhelm was born on 29 Nov 1850 in Wieck, Steinfurt, Nordrhein-Westfalen, Germany; was christened on 8 Dec 1850 in Evangelical Church, Ledde, Steinfurt, Nordrhein-Westfalen, Germany; and died.