All of the fraternities at UT (that I know members in) have some Hispanic kids as members, but they are still usually kids from the same towns, highschools, camps, etc. where current members come from. Being Hispanic in Texas is not an unusual thing.
As an aside: Is it just me, or is grammar, spelling and punctuation going out the window? Some of the posts make me cringe to think that a college bound kid is writing them.