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O'Daly, Donogh Mór O'Daly, Donogh Mór- (Catholic Encyclopedia) O'Daly, Daniel O'Daly, Daniel- (Catholic Encyclopedia) O'Curry, Eugene O'Curry, Eugene- (Catholic Encyclopedia) O'Conor, Charles O'Conor, Charles- Called "the Venerable." Eighteenth-century Irish antiquarian. O'Carolan, Torlogh O'Carolan, Torlogh- (Catholic Encyclopedia) O'Callaghan, Edmund Bailey O'Callaghan, Edmund Bailey- (Catholic Encyclopedia) Oblati, Oblatae, Oblates Oblati, Oblatae, Oblates- (Catholic Encyclopedia) Oblates of Saint Francis de Sales Oblates of Saint Francis de Sales- (Catholic Encyclopedia) Oblates of Mary Immaculate Oblates of Mary Immaculate- (Catholic Encyclopedia) Oxenford, John Oxenford, John- (Catholic Encyclopedia) O'Sullivan Beare, Philip O'Sullivan Beare, Philip- (Catholic Encyclopedia) Obedientiaries Obedientiaries- (Catholic Encyclopedia) Oscott (St. Mary's College) Oscott (St. Mary's College)- (Catholic Encyclopedia) Oratory of Saint Philip Neri, The Oratory of Saint Philip Neri, The- (Catholic Encyclopedia) Our Lady, Help of Christians, Feast of Our Lady, Help of Christians, Feast of- (Catholic Encyclopedia) Oratory, French Congregation of the Oratory, French Congregation of the- (Catholic Encyclopedia) Oaxaca Oaxaca- (Catholic Encyclopedia) Overbeck, Friedrich Overbeck, Friedrich- (Catholic Encyclopedia) Our Lady of the Fields, Brothers of Our Lady of the Fields, Brothers of- (Catholic Encyclopedia) Oslo, Ancient See of Oslo, Ancient See of- (Catholic Encyclopedia) Otfried of Weissenburg Otfried of Weissenburg- (Catholic Encyclopedia) Orientation of Churches Orientation of Churches- (Catholic Encyclopedia) Orans Orans- (Catholic Encyclopedia) Odense, Ancient See of Odense, Ancient See of- (Catholic Encyclopedia) O Salutaris Hostia O Salutaris Hostia- (Catholic Encyclopedia) Oriflamme Oriflamme- (Catholic Encyclopedia) Osnabrück, Diocese of Osnabrück, Diocese of- (Catholic Encyclopedia) Orbellis, Nicolas d' Orbellis, Nicolas d'- (Catholic Encyclopedia) Osimo Osimo- (Catholic Encyclopedia) Oriental Study and Research Oriental Study and Research- (Catholic Encyclopedia)