[MysticCat]

Me: Phi Mu Alpha Sinfonia
Dad: Kappa Sigma
Mom: went to a non-Greek school
Sister: Phi Mu
Her Husband: Phi Mu Alpha Sinfonia
Brother: not Greek (his wife went to a non-Greek school)
Wife: Kappa Kappa Gamma
Her Dad: Kappa Sigma
Her Mom: Pi Beta Phi
Her Sister: Zeta Tau Alpha

Add to that a grandfather (no longer living) who was a Beta, an uncle who is a Beta, an uncle who is an Alpha Tau Omega, a cousin who is a Theta and a cousin-in-law who is a Sinfonian.

That's 9 fraternities/sororities altogether, with 3 Sinfonians!