Pi Delta Phi established communications with Phi Lambda Alpha (ΦΛΑ) fraternity, which had been recently founded in 1919, in the Western Province of the United States, at the University of California, Berkeley. After some communication, these two organizations realized the existence of a non-Greek letter secret society, the Union Hispano Americana (UHA). As a result of intensive correspondence and various interviews, the three organizations merged. In their merger agreement, the three organizations adopted the name of Phi Lambda Alpha fraternity, with the distinctive emblem & constitution of Pi Delta Phi, and the goals & motto of the UHA. This new union was formalized on June 11, 1921, in the City of New York.