The Aztec Club at Iowa State College, which long petitioned Phi Delta Theta for a charter, was reorganized under the name Cadduria Club, and chartered by the Chicago convention. Iowa Gamma was installed on the weekend of April 10-12, 1913, by the following officials: Charles Fackler Lamkin past president of the General Council, presiding, Fred Jackson Coxe, General Council secretary, and Frederick R. Cowles, president of Zeta Province.

At the time of the Fraternity’s 100th chapter installation, Phi Delta Theta was second among the thirty-six fraternities in the number of chapters, second in the number of houses owned, eleventh in the percent of houses owned, second in the total valuation of houses, and seventeenth in the average valuation.