I am trying to find further information about the identity of my ggggrandfather, born some where in Pennsylvania, I'm guessing 1770 to 1785. His son Henderson McMahon, (my gggrandfather) was born in North Carolina in 1805 and moved to Tennessee somewhere around 1825 because he shows up on an 1830 Tennessee census in the Maury /Williamson county area (Spring Hill community). Henderson married Eliza Jane Blair in 1845 in Tennessee. I know this is vague but I don't have much information to go on. Thanks for any replies with any information or suggestions ...