I am the only Greek of any kind in my entire extended family.
Since my brothers and I are the youngest of our extended family (mom is youngest of 3 and dad is youngest of 6), I'll be the only Greek for a while unless my youngest brother joins a fraternity, but he still has 4 more years until that could happen.
I have a brother who is a sophomore at Frostburg, but I can pretty much guarantee he won't be going Greek, since he does not have the interest, grades, or personality for it.