It may be helpful to try to locate your ancestor through probate records and wills, land, and tax records. These things will put your ancestor in a particular place at a particular time, list heirs (although they are not necessarily the children of the deceased), and give you inventories of their possessions. I will not go into great detail on them here. For a more detailed discussion, check out "Unpuzzling Your Past: A Basic Guide to Genealogy" by Emily Anne Croom. Your local public library probably has a copy.