The Bass Pro in Grapevine, TX has some traditional longbows and recurves. It's where I got my Bear Montana longbow. They also have an aisle with a few traditional accessories, like bow sock, leather quiver, and things of that nature. However, be wary of asking the techs to set up your trad bow there. Before I bought it, I asked to have it strung so I could at least draw it first and get a feel for it. A young guy behind the counter proceeded to begin stringing it using the step-through method, instead of using a bow-stringer, at which point I asked him to stop and do it properly with a bowstringer.
The Cabela's north of Ft. Worth also had a few trad bows on display, but not much of a selection worthy of mention.
A local bow shop called the Outdoor Pro Shop in Garland, TX sometimes has some traditional bows, more so than the Cabela's in Ft. Worth, and has a few trad accessories, but not much compared to the selection at 3Rivers and other online stores. Sadly, I don't remember seeing any trad bows or trad accessories at another local bow shop in Lewisville, TX. I also don't remember seeing any trad bows or accessories at any of the Dallas area Dick's Sporting Goods or at the Gander Mountain north of Dallas the few times I've been.