Hey Gary,
I live in Northern KY too...
I usually go to Planet Collectibles in Florence for my supplies. They are kind of hit-and-miss as far as prewar cards go though.
Have you checked out Ideal Cards & Coins at 6265 Glenway Ave. on the westside of Cincy? That's the shop that I go to most often in the area.
They have a nice selection of raw cards from the 50's-80's and also have a fair amount of prewar too.