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Tau Delta Phi
http://www.taudeltaphifraternity.com/
Founded in 1910 simultaneously at the City College of New York, the New York College of Dentistry, and New York University.
Tau Delta Phi - Cooper Union - Delta Eta Chapter
http://www.cooper.edu/organizations/greek/tdp/home.html
In New York City.
Tau Delta Phi - New Jersey Institute of Technology
http://www.geocities.com/CollegePark/quad/2658/
In Newark, NJ.