Possibly the following; some of the data appears to fit her profile:
Maria M. King (parents unknown), b. 1806 Falmouth West, Pendleton, Kentucky, USA; d. 16 Sep 1860 • Buffalo Hart, Sangamon, Illinois, USA. See Find A Grave. Husband: James Dunaway. One child mentioned on FAG: William b. 1833 (agrees with child named in profile.)
James Dunaway (parents unknown), b. 1811 Falmouth West; d. 11 Nov 1872 • Buffalo Hart. Child named in Ancestry tree: Charles N. Dunaway, b. 2 Nov 1838 (name and year of birth agrees with profile.)