Leo married Lillian Froelich on 24 Jul 1928 in Mandan, Morton County, North Dakota, USA. Lillian (daughter of Alexander Fröhlich Froelich and Elisabetha Leingang) was born on 17 Apr 1907 in Mandan, Morton County, North Dakota, USA; died on 1 Oct 1990 in North Dakota, USA; was buried in Mandan Union Cemetery, Mandan, Morton County, North Dakota, USA. [Group Sheet] [Family Chart]