Erwin married Bertha Guthmiller on 5 Dec 1933 in South Dakota, USA. Bertha (daughter of Ludwig Guthmüller Guthmiller and Katharina Hieb) was born on 8 Mar 1911 in South Dakota, USA; died on 7 Nov 2002 in Tripp, Hutchinson County, South Dakota, USA; was buried in Grace Hill Cemetery, Fair Township, Hutchinson County, South Dakota, USA. [Group Sheet] [Family Chart]