I'd be interested too.. San Marcos and Lockhart each have one, but the one in Lockhart specializes in Cubs. The one in San Marcos is a corporate pilot and is hard to schedule... There's one in Cameron, Tx but I thought he was too far...
Joy Bowden is in Houston. She specializes in Citabria, Decathlon and Stearman. She has something like 17,000 hours of tailwheel instruction. Texastaildraggersinc.com I think is their website.