If you like the KKG book, you might also want to try Just As We Were-a Narrow Slice of Texas Womanhood by Prudence Mackintosh. The book contains part of an essay she wrote for Texas Monthly in 1979 about sorority life in the South, especially Texas.
She's a Kappa and she talks about the competition to get into the "Big 6" at Texas.
I've been meaning to order it and I just checked--it's available at
www.bibliofind.com. 