Robert Dermot O'Flanagan
Robert Dermot O'Flanagan attended the school run by Dominicans in Dun Laoghaire and the Belvedere College in Dublin. O'Flanagan studied Catholic theology and philosophy at St. Ignatius College, Valkenburg aan de Geul in the Netherlands. He received on 27 August 1929, the sacrament of Holy Orders for Vicariate Apostolic of Alaska.
Robert Dermot O'Flanagan then returned to Ireland and taught from 1930 to 1932 at Clongowes Wood College in Clane, County Kildare. He volunteered for the mission in Alaska. In 1933, O'Flanagan in Juneau. Initially he worked in Seward. From 1933 to 1951, Robert Dermot O'Flanagan pastor of Holy Family in Anchorage.
On July 9, 1951, he was named by Pope Pius XII. Bishop of Juneau. The Vicar Apostolic of Alaska, Francis Doyle Gleeson SJ, donated him on 3 October of the same year, the episcopal ordination; Co-consecrators were the Bishop of Spokane, Charles Daniel White, and the Bishop of Yakima, Joseph Patrick Dougherty.
O'Flanagan attended all four sessions of the Second Vatican Council.
Robert Dermot O'Flanagan took effect on June 19, 1968 back as Bishop of Juneau and was appointed titular bishop of Trecalae. On January 13, 1971, he renounced the titular Trecalae.