I like to use old plat maps and compare then against newer plat maps. If I find relatives on the old plats maps and then compare them to the new plat maps to see who is on the old homestead. Sometimes, I find more relatives still living on the old homestead. Also, it is a great way to find forgotten little cemeteries. They may be listed on an old plat map with a little cross and not be recorded on a current plat map. You might even find that long lost relatives gravesite.