Yes, I was unable to find any mention of Texas @ Beta Hydri in my GDW/FFE source materials, either, which caused me to wonder whether its mention in the writeup on Texas was a 2320 thing, which I don't have access to.
It makes sense for Texas to have an installation of some sort at Beta Hydri, gateway to two of their colony worlds.
IM2300U, the Eber and Muslims share a special Glorious Mystery, which makes the UAR presence on Kormoran a lot less sleazy and opportunistic than is depicted in the Ranger sourcebook. It also makes the situation for the Texas colony a lot more prickly and precarious than just gunning down a few marauding tootling Eber owlhoots with a long rifle. That Glorious Mystery might also help explain the interest of Arab fundamentalists on Beta Hydri, which makes a Texan diplomatic presence there additionally important.
...So, just checking.