We had a fairly long article in our magazine,
The Adelphean, about multiples recently. Many were twins or triplets, and if I remember properly, there was one set of quads - not all of them women. In each case, all of the female multiples went ADPi.
When I was in school, there were four sets of twins among the sororities, and I think three sets in fraternities. The females all went to the same GLO, and one set of the male twins split up, while the others stayed with the same. One set that was in ADPi were named Aimee and Angie - can you tell their approximate ages?