A little more research, and additions/corrections by Janine Ramsey, has revealed more information on Rice Coffey, a son of Levi and Dolly Edmundson Coffey.
We do not yet know when Rice died. He has been found in the 1870 census residing in the household with the John and Rachel Padgett family in Hayesville Twp., Clay Co., NC, and was reported to be "insane" in that census.
Rachel Padgett is believed to be a younger sister of Rice's wife, Dorotha Jane Medaris. Dorotha probably died prior to 1870, and Rice prior to 1880.
John Padgett was born c1803 and Rachel c1813, both in NC. Two children have been found: Roseline, born c1849 and Festus Lander, born c1851. Roseline was unmarried and found in both the 1870 and 1880 census with her parents. Festus was found with the family in 1870. I am still searching for them in 1850 and 1860.