Johann married Helene Nirk 6 Oct 1904. Helene (daughter of Karl Nirk and Christiane Jacobine Obenland) was born 20 Jul 1880, Kircheim Unter Teck, Baden-Wurttemberg, Germany; was christened 15 Aug 1880, Kircheim Unter Teck, Baden-Wurttemberg, Germany. [Group Sheet]