Marion married Dorothea Bender on 27 May 1875 in Monroe County, Ohio, USA. Dorothea (daughter of Johannes Jakob Bender and Maria Elisabetha Stegner) was born on 27 May 1849 in Lewisville, Monroe County, Ohio, USA; died on 6 Oct 1941 in Lewisville, Monroe County, Ohio, USA; was buried on 8 Oct 1941 in Friendship Cemetery, Summit Township, Monroe County, Ohio, USA. [Group Sheet] [Family Chart]

1. Elizabeth Alice Thornberry was born on 26 Feb 1876 in Lewisville, Monroe County, Ohio, USA; died on 30 Oct 1950 in Lewisville, Monroe County, Ohio, USA.
2. George M. Thornberry was born on 3 Sep 1878 in Lewisville, Monroe County, Ohio, USA; died on 5 Aug 1958 in Monroe County, Ohio, USA.