I don’t know of anything within an hour’s drive of Louisville but there are individual (dirt) tracks certainly within that radius in both Indiana and Kentucky.
If you want to stick to pavement, however, you could try the SIRA club which gets as far south as Columbus (IN), which is about 75 minutes from Louisville or go south to the AMPS club based in Nashville (TN).
Are you wanting in Omar or for your kids? PM me and I can give you contacts for information….