Allen Wheatley has a hobby that may benefit some of us: he takes pictures of headstones in cemeteries all over the country and posts them online. Here is his explanation: "I started photographing just my relatives in their cemeteries but found I needed to go back often to get newly found cousins. So I switched to getting complete cemeteries. Now I rarely go to a cemetery because of relatives therein, I just enjoy getting all the pictures and sharing with you."
He currently has cemeteries from just over 30 states. There just might be a connection between your ancestors and his coverage. Check it out at: http://teafor2.com/