Plans for the official establishment of the fraternity fell through upon the entry of the United States into the First World War in 1917, with several members subsequently joining the armed forces.

These became the Founders: Following the conclusion of the war in November 1918 and the return of members back to school, Carr led efforts to restart the process of establishing a social fraternity at Lehigh.

Ultimately thirty men, including Concilio, Carr, and Bobbin, agreed to the establishment of the X Club, the original name of Theta Kappa Phi.

At the time of its adoption, the letters simply stood in place for ‘The Catholic Fraternity’ before they were given a secret meaning later upon merger into Phi Kappa Theta in 1959.

Michael Andrew Chapman in writing Theta Kappa Phi’s ritual, who was an Episcopal priest as well as a member of Sigma Alpha Epsilon at Bard College.