There was a William H. Davidson who married Ann Eliza Hamilton in 1814 in Charlotte County, VA. In 1850, there was a younger Ann E. Davidson (age 22) in Charlotte County, VA who was listed as having been born in Granville or Gramercee (?) NC. She was living with the Hamilton family (probably the brother of the above Ann Eliza (Hamilton) Davidson). I could never find this William H. Davidson (or his wife) on ANY VA census or any other record other than his marriage record, and based on his apparent daughter's NC birth, I wonder if he could have left the state for a while. Any idea if this could have been your William Davidson? His first wife might have died since the daughter was living with the wife's family. There was yet a third Ann E. Davidson in Charlotte County, VA. She was born about 1830 and died at age 23 in 1853. I do not know who her parents were, but there are a couple of possibilities (including a William W. Davidson and his wife; this William was a likely relative of William H. Davidson). The middle/second Ann E. Davidson moved to Halifax County, VA with the Hamiltons by 1860.