First Black Greek-Letter Organization chartered at. . Kennesaw, Georgia, Notorious Alpha Delta Nu Psi Phi Chapter of Omega Psi Phi Fraternity, Inc. P.O. Because of Brothers graduating out of the chapter at different times between 1971 and 1975; the charter was applied for in 1973 and officially received in 1975 when the chapter had enough Brothers on the campus. Location & Hours. Tacoma, Washington Delta Pi,