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John Mark Gannon Edit Profile


John Mark Gannon, American bishop.


Gannon, John Mark was born on June 12, 1877 in Erie, Pennsylvania, United States. Son of Thomas Patrick and Julia (Dunlavey) Gannon.


Bachelor of Arts, St. Bonaventure’s College, Allegany, New York, 1899. Bachelor of Sacred Theology, Catholic U., 1900, Licentiate of Sacred Theology, 1901. Doctor of Divinity and Doctor of Civil Law, Appolinare U., Rome, Italy, 1903.

Special studies, University of Munich, 1902. Doctor of Laws, Duquesne U., 1914, Notre Dame U., 1927, St. Bonaventure’s College, 1933, St. Vincent’s College, 1935. Doctor of Letters, Catholic University of America, 1962.


Pastor St. Anthony’s Church, Cambridge Springs, Pennsylvania, 1904-1915, St. Brigid’s Church, Meadville, later St. Andrew’s Church, Erie. Superintendent Catholic education, Diocese of Erie, 1911-1919. Consecrated auxiliary bishop of Erie, February 6, 1918, bishop of Erie, 1920.

Assistant at the Pontificial Throne, November, 1944. Appointed Archbishop, Ad Personam, November, 1953. Episcopal chairman Catholic Press Association National Catholic Welfare Conference, Washington, 1937-1944.

Also Episcopal chairman American Bishops on Mexico Affairs, Washington, 1944-1950. Planned Villa Maria College & Mercyhurst College, Erie, Pennsylvania. Founder Montezuma Seminary, Montezuma, New Mexico, 1937.

Founder Gannon College, Erie, Pennsylvania. Treasurer National Catholic Welfare Conference, 1944-1950. Founder Noticias Catolicas, a news service for all Spanish and Portuguese speaking countries.

Founder Sisters of Congregation of Divine Spirit, an American Foundation, 1956. Supreme chaplain Ladies Catholic Benevolent Association. State chaplain Catholic Daus.


Thomas Patrick Gannon

Julia (Dunlavey) Gannon