This is because most fraternities and sororities are named after a series of Greek letters, such as Alpha Delta Pi or Sigma Phi.

VOA: special.2009.09.25

These days, she's teaching the brothers of Alpha Sigma Phi at the University of Washington about the benefits of locally grown produce and writing a blog called Fraternity Kitchen.

WSJ: Dude, Those Candied Walnuts Go Great at a Kegger

"We see Donnie as a brother and we want to support him in this endeavor, " Phi Alpha Tau Chapter President Jon Allen told CNN affiliate WBZ-TV.

CNN: Frat pays for brother's sex change

Collins, a 20-year-old sophomore at Boston's Emerson College, learned soon after he joined the Phi Alpha Tau fraternity that his insurance company declined to cover surgery to remove breast tissue to flatten his chest.

CNN: Frat pays for brother's sex change