My James M Dunn was born in 1854 in KY, at least that is what he said on the 1880 census. He was living in Howell Co, MO then with family and his Divorced mother, Nancy Dunn, whe was born in KY in 1820.. Nancy's parents were born in NC. James's wife Nancy Henderson was born in GA in 1857. They were married, I think in Fulton Co, AR, where her mother lived. He used Mark as his middle name. There is a M. M. Dunn living in Fulton, who was born in KY in 1819 and his parents were born in NC. On the 1900 census James M. Dunn is in Cleburne Co, AR. On the 1900 census he says that he was born in 1850. He is gone in the 1910 census.