The following data is extracted from A History of the Pioneer Families of Missouri - Montgomery County.
Alexander Davidson, of South Carolina, married Sarah Ellis, and settled in Kentucky, from whence, in 1821, he removed to Missouri and settled in Montgomery County. They had three children John, Abraham and Rachel. Abraham was married first to Mary Branson, by whom he had twelve children Alexander, Alfred, Abraham, Stout B., Franklin, Hezekiah, Elizabeth, Sarah, Rachel, Mary, Louisa, and Martha. His first wife died and he was married the second time to the widow Hub-bard, by whom he had William and John A. Mr. Davidson was not out of the County during the last forty-five years of his life.
Source: A History of the Pioneer Families of Missouri - Montgomery County