In 1973 Delta Phi Epsilon Foreign Service Sorority was founded, with its Alpha chapter at Georgetown University.

During this time, other groups with similar missions, such as the Council on Foreign Relations, were founded, along with international bodies such as the League of Nations.

Later these men joined with seven other interested undergraduates (future brothers Sandager, Butts, Ash, MacKenzie, Brooks, Sullivan, Scott, and Bates) and signed the Articles of Agreement.

After choosing a name and nominating officers, Delta Phi Epsilon Foreign Service Fraternity was formally founded at the Catholic Community House at 6th and E Streets, NW, on January 25, 1920.

[4] In 1956 the National Board of Directors of the fraternity created the Delta Phi Epsilon International Society of Business and Foreign Affairs which was to be open to both men and women.

[4] In June 1972, the Alpha chapter at Georgetown changed to include both a fraternity and a sorority of the Delta Phi Epsilon Professional Foreign Service.

[10] In 2016, the fraternity's National Convention endorsed a proposal for joint fraternity-sorority projects, including publishing a peer-reviewed Delta Phi Epsilon Journal of Foreign Affairs, operating a scholarship competition for students who had been initiated into Delta Phi Epsilon, and holding an annual symposium promoting alumni and student international relations research.

This project developed into the Delta Phi Epsilon Foreign Affairs Council, incorporated and recognized as a 501(c)(3) nonprofit educational organization in 2016.

[11] The council originally selected its leaders from Delta Phi Epsilon members to support international relations education, promote public engagement in foreign policy, and provide career development tools to Delta Phi Epsilon brothers and sisters.

[14] In July 2018, The Chronicle of Higher Education published several accounts of student and alumni fraternity members, accusing Terrence Boyle of sexism and bigotry.

[14] Boyle has served as the fraternity's general secretary for nearly 40 years, controlled the alumni newsletter, and oversaw pledge recruitment for the Alpha chapter.

[6] On June 1, 2020, Terrence J. Boyle, the Treasurer of DPE, Inc., donated Alpha House to a separate corporation named the Delta Phi Epsilon Foundation for Foreign Service Education.

In 2021, the District of Columbia Attorney General, Karl Racine, filed a case against Mr. Boyle, the Foundation for Foreign Service Education and the Delta Phi Epsilon corporation.

[1] The complaint alleged that Mr. Boyle unlawfully used charitable funds belonging to the Foundation for Foreign Service Education to buy a house on 34th Street NW in 1990.

On November 30, 2023, the D.C. Office of the Attorney General and the three defendants signed a Consent Judgment, which was approved by the D.C. Superior Court.

Mr. Boyle was barred for 10 years from being an officer, director, trustee or employee of any nonprofit organizations operating in the District of Columbia.

For decades, the Alpha chapter of Delta Phi Epsilon was the only fraternal organization at Georgetown University with its own house.

[1] During the February 2020 annual meeting of Delta Phi Epsilon, its members voted to sell 3401 Prospect Street for as much money as possible.

Alpha chapter's historic house purportedly had to be sold because it was believed that Georgetown University implemented a rule requiring undergraduates to live on campus for four years.