Hi. How old would your Mattie be? Hiram did have a daughter named Martha, which very often they are called Mattie. The daughter Martha would have been born about 1862 according to the 1870 census. She was born in Georgia. the family was in Nelson County, Ky. in 1870 and later in either Gwinnett or Gordon County, Ga. If any of this sounds familiar let me know.