Friederich married Wilhelmina Katharina Obenland 14 Dec 1886, Clay Center, Clay County, Kansas, USA. Wilhelmina (daughter of Gottlieb Gottfied Friederich Obenland and Luise Katharine Riegert) was born 31 May 1867, Kleinaspach, Neckarkreis, Wurttemberg, Germany; died 8 Dec 1919, Madison Township, Riley County, Kansas, USA; was buried 11 Dec 1919, Clay Center, Clay County, Kansas, USA. [Group Sheet]