When looking at deed indexes, be sure to look at both the "Grantor Index", an index to those selling the land and the "Grantee Index", an index to those buying the land.
Make a list of all living relatives after you complete your personal genealogy. Interview each of them. Be prepared with a list of questions. Use a tape recorder for the answers or take very good notes. Respect the person's privacy, but do not delay; relatives have a nasty habit of dying before being interviewed.
It's very important to check maps. Boundaries change over time. Be sure the area where you think your ancestors resided is actually the area where they were.
DNA: (Deoxyribonucleic Acid) The chemical name for the molecule that carries genetic instructions in all living things. The DNA molecule consists of two strands that wind around each other to form a shape known as the double helix.
In Land Deeds, check to see if buyer and/or seller is from the same area where the land is being sold.