The fourth of ten children, O'Hara was born in Ann Arbor, Michigan, to John O'Hara and Ella Thornton. His father was a leader of the Irish American Catholic community, published a small newspaper and was active in Republican circles.[1]
In 1906, O'Hara moved to Argentina and spent six months on a cattle ranch.[3] Returning to Uruguay, he conducted market surveys for the United States Department of State.[4] He furthered his studies, and then accompanied his father after the latter was transferred to Brazil.
O'Hara was ordained to the priesthood by Bishop Joseph Chartrand of Indianapolis on September 9, 1916. He then returned to his alma mater of Notre Dame, where he served as prefect of religion and dean of the College of Commerce. O'Hara greatly fostered the practice of daily reception of Communion, then still a newly approved practice by the Catholic Church. He made national headlines when he arranged for two Notre Dame football players, on their way to a game against West Point, to receive Communion in Albany, New York; the team has since had the opportunity to receive Communion on trips away.[2][3] He served as the dean of the College of Commerce from 1921 to 1924.
President of Notre Dame
O'Hara was appointed the Vice President of the University of Notre Dame in 1933, and its president in 1934. During his tenure at Notre Dame, he brought numerous refugee intellectuals to campus; he selected Frank H. Spearman, Richard Reid, Jeremiah D. M. Ford, Irvin Abell, and Josephine Brownson for the prestigious Laetare Medal. President Franklin D. Roosevelt named him a delegate to the 1938 Pan-American Conference in Lima, and he was later invited by President Eleazar López Contreras to head a social service mission in Venezuela.[1] O'Hara concentrated on expanding the graduate school. During his tenure, he made doctorates available in philosophy, physics, mathematics, and politics. O'Hara also carried forward the building program and led construction of a new laundry, the post office, and the infirmary. He also built the Rockne Memorial, Cavanaugh, Zahm and Breen-Phillips.
O'Hara strongly believed that the Fighting Irish football team could be an effective means to "acquaint the public with the ideals that dominate" Notre Dame. He wrote, "Notre Dame football is a spiritual service because it is played for the honor and glory of God and of his Blessed Mother. When St. Paul said: 'Whether you eat or drink, or whatsoever else you do, do all for the glory of God,' he included football."[5]
Differing in style from his predecessor, Cardinal Dennis Joseph Dougherty, he often answered his own doorbell, which he explained by saying "How else can I meet the poor?"[6] During his tenure, O'Hara oversaw the establishment of sixty-one new schools, three women's colleges, and special schools for the mentally challenged, blind, and deaf.[1] Beginning in 1955, he also restored and expanded the Cathedral of Ss. Peter and Paul. He condemned the Supreme Court's ruling against banning the films La Ronde and M.[7] Moreover, not overly favorable of radio and television, he suggested that Catholics sacrifice such entertainment for Lent.[8]