Yep. I know two of them. They live here in Kerrville. John Ike Walton (drums) and Ronnie Leatherman (bass). I bought my hi-hat stand from John Ike last year. It had been in his attic since the 70’s. I’ve known John and Ronnie for about 18 years. Nice people.
http://www.texasmonthly.com/daily-post/legendary-texas-psych-rock-band-13th-floor-elevators-are-playing-their-first-show-1968