Yes; No but some of us looked them up at the back of a dictionary (no google back then!); and No but I wish they had as I've always been a curious student.
And additional remembrances to what DGTess states above: we learned about the other groups on campus by talking with women in those other groups during informal get-togethers with popcorn, hot chocolate, candies and sodas. I had also learned about sororities thru the periodical index of newspapers and magazines at my local library during summers before college. More than likely I read 'that' University of Texas Article so fondly
and occasionally recalled by those posting on this site.