Crab Orchard, TN, but I'd stop at Crossville.
The halfway point between Memphis, Tennessee and Louisville, Kentucky is Pegram, Tennessee.
Nashville, Tennessee
Little rock ar
Jasper, AL
Mining City, Kentucky is halfway between St Louis & Gatlinburg
Shelbyville, KY
Bedford, Indiana is just about the halfway point.
If you take the southern route, I recommend Jackson, Mississippi as your halfway point. If you take the northern route, I recommend Memphis, Tennessee as your halfway point.
WHAT IS THE HALFWAY POINT BETWEEN Richmond Tx and Dayton Oh
The halfway point between Charleston, West Virginia, and Mount Juliet, Tennessee falls in Lawrenceburg, Kentucky.
Memphis
Reubensville, Tennessee.