Johannes Siertsema

Johannes married Fenna Adriani, daughter of Arius Adriani and Johanna Sijlman, on 11 Aug 1756 in Groningen, Groningen, Netherlands. (Fenna Adriani was born on 27 Feb 1732 in Groningen, Groningen, Netherlands, christened on 27 Feb 1732 in Groningen, Groningen, Netherlands and died on 2 Aug 1757.)

Johannes next married Margaretha Sypkens on 15 Aug 1759 in Nieuwolda, Groningen, Netherlands. (Margaretha Sypkens was born on 21 Dec 1738 in Eext, Drenthe, Netherland and died on 14 Dec 1820 in Groningen.)

Johannes next married Anna Margaretha Sparringa on 15 Sep 1751 in Wetsinge, Germany. (Anna Margaretha Sparringa was born on 9 Apr 1727 in Eext, Drenthe, Netherlands and died on 10 Dec 1752 in Wetsinge, Germany.)