I have a post about the contestants as well as past Miss USA/Miss Universe winners who are sorority women.
http://wp.me/p20I1i-1eY
I've started a post about the Miss America 2015 contestants and will be updating it as the information becomes available. Of the handful of state contestants who have been chosen for that contest, two are sorority women, a Tri Delta and an Alpha Sigma Alpha.
http://wp.me/P20I1i-1eS