The earliest ancestor that I can trace is a Henry Hamilton listed in the 1850 census, born in Jefferson County Ohio ca 1835. He is at 1850 census time living with a family by the name of Blackledge. There is circumstantial evidence that his parents were James Hamilton and Elizabeth Blackledge from Harrison or Jefferson county Ohio. In 1860 he (Henry) married a Mary Ann Slates and around 1870 moved west to DeKalb County Missouri. Henry and Mary Ann had 6 boys: Riley, Thomas, William, Fred, Jim (twins) Edward and 2 girls, Hannah (Minnie) and Elizabeth   I would asume Eliabeth Blacklegde Hamilton would be born around 1810- 1817 if she is the Mother of Henry Hamilton.   Thanks John