phil441,
I visited a friend in Austin two years ago. Have you been to Fredericksburg? It's up north of you. There is a real nice War Museum there. It took me over 4hours to go through it. One display has a Carbine. Worth the time, cost is low. Also there is a tribute to Admiral Nimitz born there.
Nice place to visit, wish I hadn't done it in August. HOT and HUMID.