Jerome Daniel Hannan

Jerome Daniel Hannan (November 29, 1896 – December 15, 1965) was an American prelate of the Roman Catholic Church. He served as Bishop of Scranton from 1954 until his death.

Hannan was born in Pittsburgh, Pennsylvania, to James and Rose (née Tiernan) Hannan. He studied at Duquesne University in Pittsburgh, from where he obtained a Bachelor of Arts degree in 1916, and then at St. Vincent's Seminary in Latrobe, earning a Doctor of Divinity in 1920. He was ordained to the priesthood on May 22, 1921. He then served as administrator of Holy Trinity Church in McKeesport and curate at Holy Rosary Church in Pittsburgh until 1923, when he became chaplain at Mount Mercy Academy. He was also private secretary to Bishop Hugh Charles Boyle from 1923 to 1931.

He earned a Bachelor of Laws from Duquesne in 1931, and a Doctor of Canon Law from the Catholic University of America at Washington, D.C. in 1934. He also served as assistant chancellor of the Diocese of Pittsburgh (1934-1939), administrator of St. Paul's Cathedral (1937-1939), and associate professor of canon law (1940-1951) and vice-rector (1951-1954) at Catholic University. He also served as editor of the journal The Jurist: Studies in Church Law and Ministry.