[IndianaSigKap]

OP, definitely try your teachers, counselors, school nurse, administrators. They all went to college so odds are that a half to a third of them might be Greek. I have a sticker on my classroom cabinet that gives away my affiliation, if a student sees it and recognizes what it is she will most likely ask about Greek Life and I offer to write a rec for her. If one teacher is Greek, they usually know if any of the other teachers are as well. School is a great place to start, then church. Also ask the mothers, step mothers and sisters of your friends.
Good luck.