My ggrandfather was born in Tennessee in 1862. He shows up on the 1870 census in the household of Thomas and Sarah Mitts listed as Bird Spaugh. On the 1880 census he is in the same household but is now listed as Bird Mitz and showing that he is a grandson. Have you ran across anything in your research that could link the Spaugh name to the Mitts one? Any info would help.