First greek in my family too!
But not the only one now!
Me: Iota Beta Chi (local)
My brother: Zeta Psi
My husband: well, he never got initated in any...but he pledged Zeta Psi, Kappa Sigma (which was only a colony and folded), and Phi Kappa Pi
My brother-in-law: also pledged Kappa Sigma (but as I said, they folded)