Delta Tau Delta - ΔTΔ
Delta Tau Delta was founded at Bethany College in 1858. The fraternity journal is the third oldest fraternity magazine. The Zeta Sigma chapter was founded at Texas A&M University on November 6, 1993. Currently the fraternity has 134 undergraduate chapters. The Zeta Sigma Chapter is committed to the Adopt-A-School program. The colors of the fraternity are white, purple and gold and the flower is the purple iris.