Letter from +Arnulfo Arcilla to Mgr. John O’Regan regarding the new Liturgical changes which are to be discussed at the Annual Conference of the Hierarchy. He asks that an official English translation of the Mass be sent and if possible the actual Missal with the Latin and English texts.

Typed letter to Fr. O’Regan, Head Chaplain, from + Alberto Levame, Apostolic Nuncio, requesting information on the organization of assistance to the Military Forces.

• Correspondence between +Levame, +M.J. Killoughey, 8 March 1958 New Orleans, Mgr. Gerada and Mgr. O’Regan in relation to information on Sisterhoods and Superiors engaged in teaching in the Archdiocese.

Letter from +Riberi to Mgr. O’Regan thanking him for The Quinquennial Report of the Irish Dominican Sisters, 1954-1959 which will be sent to the Sacred Congregation of Religious.

Letter from Mgr. Gerada to Mgr. O’Regan thanking him for the cheque for 5/- for taxa due.

Handwritten letter to +McQuaid from Fr. James Ardle MacMahon. He received the reply from Monsignor O’Regan and conveyed it to the Arus.

Letter from Mgr. Alibrandi to Rev. John M. O’Regan acknowledging the annual reports for the year 1955 and the cheque for £6.14.4 in respect of taxa. These will be sent to the Sacred Congregation without delay.

Typed letter to Fr. O’Regan, Head Chaplain, from + Alberto Levame, Apostolic Nuncio, requesting information on the religious assistance to the Military Forces.

• 28 September 1971 File mainly relating to the Lourdes Pilgrimage and not strictly related to the parish. Mgr. O’Regan had an involvement with the Pilgrimage in addition to his parochial duties.

31. October Typed letter to +McQuaid from John O’Regan, Chancellor, congratulating him on his two addresses to the Fathers of the General Council.