Rice married Rebecca Emmaline King on 23 Jan 1853 in Fredericktown, Madison County, Missouri, United States. Rebecca (daughter of James King and Nancy Adams Tennison) was born on 20 Sep 1828 in , McMinn County, Tennessee, USA; died on 05 Apr 1918 in Cedar Creek Township, Wayne County, Missouri, USA; was buried in Brewington Cemetery, Madison County, Missouri, USA. [Group Sheet] [Family Chart]

1. James Madison Duncan was born on 12 Jan 1854 in , Madison County, Missouri, USA; died on 16 May 1917 in Calumet, Pike County, Missouri, United States.
2. Joseph D. Duncan was born on 31 Jul 1855 in , Reynolds County, Missouri, United States; died in Brunot, Wayne County, Missouri, United States.
3. Lottery Duncan was born on 16 Dec 1856 in , Reynolds County, Missouri, United States.
4. Sarah Ann Duncan was born on 15 Apr 1858 in , Reynolds County, Missouri, United States.
5. Solomon Duncan was born on 05 Apr 1860 in Brunot, Wayne County, Missouri, United States; died on 17 Jan 1864 in Brunot, Wayne County, Missouri, United States; was buried in Brunot, Wayne County, Missouri, United States.
6. Pony Duncan was born on 23 Feb 1862 in , Reynolds County, Missouri, United States.
7. William B. Duncan was born on 26 Jul 1863 in Brunot, Wayne County, Missouri, United States; died on 23 Aug 1922.
8. Susan Caroline Duncan was born on 08 Sep 1866 in , Reynolds County, Missouri, United States.
9. Eliza Adeline Duncan was born on 11 May 1868 in Brunot, Wayne County, Missouri, United States; died on 21 May 1952.
10. Rice Duncan was born in 1873 in , Reynolds County, Missouri, United States.