I had what I think was this couple living alone in another state. They were I believe in their 60's. The thing that caught my eye (I am also researching Davis lines) was they were alone. Are you checking other that Kentucky. I looked at my in but I deleted them as they were not of our linage although I wondered at them being alone at that age. Sorry I can't remember the state. Would 1880 be a good timeline for you. I think that was the time I was looking at.