 The Harold Parmington Foundation was a local fraternity founded in 1970 after the Dartmouth chapter of Tau Epsilon Phi dissociated from its national organization . The new local fraternity continued to reside in 15 Webster Avenue , the house now occupied by the Epsilon Kappa Theta sorority . With only one member each from the classes of 1983 and 1984 , the fraternity reorganized itself as a coeducational fraternity named Delta Psi Delta . A past president of the fraternity , Brian Dale , class of 1980 , was one of the passengers on American Airlines Flight 11 that was hijacked and flown into the North Tower of the World Trade Center in New York City during the September 11 , 2001 attacks . 
