John married Anna Catherine Schreiner about 1907. Anna (daughter of Valentin Schreiner and Margaretha Wellinger) was born in 0Jan 1888 in Rock Island County, Illinois, USA; died in in Rock Island, Rock Island County, Illinois, USA. [Group Sheet] [Family Chart]

1. Herman John Koehler was born on 11 Jun 1908 in Rock Island, Rock Island County, Illinois, USA; died on 12 Mar 1985 in Milan, Rock Island County, Illinois, USA.
2. Helen Louise Koehler was born on 22 Jun 1910 in Rock Island, Rock Island County, Illinois, USA; died on 22 Oct 1999 in Milan, Rock Island County, Illinois, USA.
3. Elmer Philip Koehler was born on 1 Jan 1912 in Rock Island County, Illinois, USA; died on 10 Feb 1994 in Rock Island, Rock Island County, Illinois, USA.
4. Mary Margaret Koehler was born on 10 May 1913 in Rock Island, Rock Island County, Illinois, USA; died on 5 Nov 2008 in Heartland Health Care Center, Moline, Rock Island County, Illinois, USA; was buried on 10 Nov 2008 in Calvary Mausoleum, Rock Island, Rock Island County, Illinois, USA.
5. Katherine Bernice Koehler was born on 14 Nov 1925 in Iowa, USA; died on 6 Dec 2008 in Genesis Medical Center West Campus, Moline, Rock Island County, Illinois, USA; was buried on 9 Dec 2008 in Calvary Cemetery, Rock Island, Rock Island County, Illinois, USA.
6. John Joseph Koehler was born on 17 May 1927 in Rock Island County, Illinois, USA; died on 24 Jun 2000 in East Moline, Rock Island County, Illinois, USA.