Materials in the Phi Delta Pi series date from 1902-1954 and includes correspondence and clippings, directories, meeting minutes, a ritual book, programs and a petition to the Tau Kappa Epsilon fratertity to be absorbed into their national fraternity. The materials related to the Delta-Pi Chapter of the TKE fraternity does not document the fraternity much after the mid-2000s and has very little documentation generated by the fraternity itself.