Henry Joseph O'Brien

Henry Joseph O'Brien (July 21, 1896 – July 23, 1976) was an American prelate of the Roman Catholic Church. He served as the first Archbishop of Hartford from 1945 to 1968.

Henry O'Brien was born in New Haven, Connecticut, to Michael and Anna (née Sweeney) O'Brien. After graduating from New Haven High School in 1914, he studied at St. Thomas Seminary in Bloomfield (1914-1917) and at St. Bernard's Seminary in Rochester, New York (1917-1919). In 1919 he was sent to the Catholic University of Leuven in Belgium, where he was ordained to the priesthood on July 8, 1923. Following his return to the United States later that year, he served as a curate at St. Mary's, Windsor Locks until 1924, when he was transferred to St. Thomas Aquinas, Fairfield. He became a professor at St. Thomas Seminary in 1926, later becoming its vice-president (1932) and afterwards president (1934).

On March 19, 1940, O'Brien was appointed Auxiliary Bishop of Hartford and Titular Bishop of Sita by Pope Pius XII. He received his episcopal consecration on the following May 14 from Archbishop Amleto Giovanni Cicognani, with Bishops Maurice F. McAuliffe and Joseph Edward McCarthy serving as co-consecrators. Following the death of Bishop McAuliffe in December 1944, O'Brien was named ninth Bishop of Hartford on April 7, 1945. The number of Catholics and parishes in Connecticut grew substantially during the post-World War II era. When the Diocese of Hartford was elevated to the rank of an archdiocese on August 6, 1953, O'Brien was made its first archbishop. At the same time, O'Brien became Metropolitan of the Hartford Province (Hartford, Bridgeport, Norwich, Providence).