I saw the sad news from a friend on FB.  Janis Joplin sang here when she was a student at UT Austin in the 1960s, but, more importantly, the place served up really good Southern cooking (chicken-fried steak anyone?), and it was inexpensive and fun.  When we lived in Austin, from 1995 to 2008, we used to go there often with our kids, since as loud as they were, Threagill's was louder, plus it had tons of stuff they liked too.