| 16257 | Armagh Diocesan Archive (RC) | | 1957 | Material relating to the Apostolic Nunciature, Archb... | Cardinal John D'Alton Archive |
| 16258 | Armagh Diocesan Archive (RC) | | 1957-1958 | Material relating to the Apostolic Nunciature, Archb... | Cardinal John D'Alton Archive |
| 16282 | Armagh Diocesan Archive (RC) | | 1957 | Material on emigration, includes:Letter of Most Reve... | Cardinal John D'Alton Archive |
| 16283 | Armagh Diocesan Archive (RC) | | 1957
1958 | Material on emigration, includes:Report on Missions ... | Cardinal John D'Alton Archive |
| 16285 | Armagh Diocesan Archive (RC) | | 1942
1958
1959 | Material on emigration, includes:Summary of work sin... | Cardinal John D'Alton Archive |
| 16292 | Armagh Diocesan Archive (RC) | | 1956 | Material relating the Department of Education, inclu... | Cardinal John D'Alton Archive |
| 16298 | Armagh Diocesan Archive (RC) | | 1957 | Material relating to the Northern Ireland Council of... | Cardinal John D'Alton Archive |
| 16306 | Armagh Diocesan Archive (RC) | | 1958 | Miscellaneous material, includes:Evie Hone Exhibitio... | Cardinal John D'Alton Archive |
| 16307 | Armagh Diocesan Archive (RC) | | 1956 | Miscellaneous material, includes:Syllabus for examin... | Cardinal John D'Alton Archive |
| 19159 | Armagh Robinson Library | Volume 1950-1959 | 1958 | An extract from The Times of an obituary for Ka... | Dean Rennison Papers |
| 16856 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1861-1940
1957 | Register of Marriages, Clonoulty parish: 1957 1861-1... | Bolton Library Archive |
| 15011 | Catholic Girl Guides of Ireland | | 1956 | Exercise Book containing Sale of Work Committee, 195... | |
| 15016 | Catholic Girl Guides of Ireland | | 1956-1957 | Annual General Report of the Catholic Social Service... | |
| 15031 | Catholic Girl Guides of Ireland | | 1956-1957 | Ring-Folder entitled Foreign Correspondence, Februar... | |
| 15064 | Catholic Girl Guides of Ireland | | 1956 | Cash Book of Fernhill Company, Wicklow, August 1956. | |
| 15102 | Catholic Girl Guides of Ireland | | 1957 | Statement of Account relating to the Sale of Work, 1... | |
| 14404 | Cavan County Archives | | 1958
1959
1965 | 6 volumes, Typescript, Annual reports of the County ... | |
| 16456 | Central Catholic Library | | 1958 | Central Catholic Library, Minute Book of the Books C... | |
| 6133 | Clare County Archives | | 1957 | Inventory of stock in Hospital and Dispensaries, 195... | |
| 6148 | Clare County Archives | | 1957-1958 | Public Assistance Account Book, 1957 - 1958. | Clare County Council |
| 20731 | Clogher Diocesan Archives (RC) | Box 51 | 1956 | 3 pages, manuscript and typescript, which appears to... | Clogher Diocesan Records (RC) |
| 20732 | Clogher Diocesan Archives (RC) | Box 51 | 1957 | A number of pages about a Visitation to the St Louis... | Clogher Diocesan Records (RC) |
| 13779 | Cork City and County Archives | U151 | 1956 | Copy of a marriage certificate between Matthew Samue... | |
| 20755 | Cork Public Museum | AQNOL1996:143 | 1954
1957 | Letters from Ina in Dublin to Nora Wallace, 7 April ... | Nora Wallace Collection |
| 22946 | Down and Connor Diocesan Archive (RC) | A-T | 1957 | MD. Information relating to the media, including, fo... | |
| 20777 | Garda Museum and Archives | File 1 | 1958
1993 | Garda Síochána, women members of the f... | |
| 186 | Irish Film Archive | Amharc Éireann/Bantracht | 1956 | 'Amharc Éireann/Bantracht na hÉire... | Gael Linn Collection |
| 214 | Irish Film Archive | Amharc Eireann/Cursai Ost | 1957 | 'Amharc Éireann/Cursaí Ostá... | |
| 219 | Irish Film Archive | Amharc Éireann:Feiriní Cuimhn | 1958 | 'Amharc Éireann: Feirini Cuimhne (Souveni... | Gael Linn Collection |
| 257 | Irish Film Archive | Amharc Éireann/Cursaí Óstan | 1957 | 'Amharc Éireann/CursaÍ Ósta... | |
| 267 | Irish Film Archive | Amharc Éireann: Fleadh Ceoil | 1957 | 'Amharc Éireann: Fleadh Ceoil': Prod... | Gael Linn Collection |
| 308 | Irish Film Archive | Irish and Elegant | 1957 | 'Irish and Elegant': Production Company: Te... | |
| 371 | Irish Film Archive | Ireland in Spring | 1958 | 'Ireland in Spring': Film showing Ireland c... | |
| 394 | Irish Film Archive | More Power to the Farmer | 1957 | 'More Power to the Farmer': Production Cred... | |
| 397 | Irish Film Archive | Amharc Éireann | 1957 | 'Amharc Éireann: Saoire na Sionainn':... | Gael Linn Collection |
| 310 | Irish Film Archive | Amharc Éireann/Oiliúint Manach | 1957 | 'Amharc Éireann/Oiliúint Manachan ... | Gael Linn Collection |
| 331 | Irish Film Archive | Amharc Éireann/Oiliúnt Manacha | 1957 | 'Amharc Éireann/Oiliúnt Manachan (... | Gael Linn Collection |
| 355 | Irish Film Archive | Amharc Éireann/Bantracht | 1956 | 'Domestic': Amharc Éireann/Bantracht... | Gael Linn Collection |
| 1367 | Irish Theatre Archive | ITA/131/9/01A | 1958 | Letter from Jimmy O'Dean in California during fi... | Jimmy O'Dea Collection |
| 13782 | Kilmainham Gaol Museum | 17MS-1B43-9 | 1957, 1972 | Memory cards for Elizabeth O'Farrell, 1957 and J... | Easter Week |
| 13780 | Limerick Museum | AQNO(1996.1465.05) | 1956 | Bank statement, typescript on printed form. Munster ... | |
| 13781 | Limerick Museum | AQNO(1996.1465.04) | 1956 | Bank statement, typescript on printed form. Munster ... | |
| 12992 | Limerick Museum | AQNO(1996.1463.1) | 1916
1956 | Photograph, black and white mounted. 1916 Memorial w... | |
| 21279 | Meath Local Studies and Family History Department | UDC/I/J/ | 1955
1956 | Sewerage, Expansion of System: 39 February 1956. Cir... | Navan Urban District Council |
| 3834 | National Archives of Ireland | E22/3/71/ | 1956 | Department of Industry and Commerce.E22 File Series:... | Department of Industry and Commerce |
| 3837 | National Archives of Ireland | TIA4260 | 1956 | Department of Industry and Commerce. Insurance Secti... | Department of Industry and Commerce |
| 3838 | National Archives of Ireland | TIA200/134 | 1956-1957 | Department of Industry and Commerce. Commerce Sectio... | Department of Industry and Commerce |
| 3840 | National Archives of Ireland | 315/23 | 1956 | Department of Industry and Commerce. 315 File Series... | Department of Industry and Commerce |
| 3902 | National Archives of Ireland | TW1990 (Vol 1) | 1957 | Files regarding Radio and Broadcasting: Cooke, Sarah... | Department of Tourism, Transport and Communications |
| 4700 | National Archives of Ireland | 415/504 | 1957 | Freiburg Housewives Association Exhibition. The Hous... | Department of Foreign Affairs |
| 4731 | National Archives of Ireland | BD116/9 | 1957 | Maternity Cash Grants, returns for half year 30 Sept... | Department of Health |
| 4900 | National Archives of Ireland | TIA4240/17 | 1956-1957 | Hiring Hire Purchase & Credit Sale Order, 1956: ... | Department of Industry and Commerce |
| 4901 | National Archives of Ireland | TIA/4240/31 | 1956 | Alleged contravention of Hiring Hire Purchase and Cr... | Department of Industry and Commerce |
| 11402 | National Archives of Ireland | A1/149 | 1956 | Carlow: Fever Hospital, resignation of head nurse, 1... | Department of Health |
| 23982 | National Archives of Ireland | Court of Criminal Appeal 36/56 | 1956 | Mary Ann Cadden, 1956. Abortionist, accused and conv... | Department of Justice |
| 11170 | National Gallery of Ireland Library | AB33 | 1956 | Paul Henry ArchivesIncludes correspondence relating ... | |
| 1960 | National Library of Ireland | Ms4844 | 1530-1600
1958 | A typescript on the life and times of Grace O'Malley... | |
| 2009 | National Library of Ireland | Ms7796 | 1956 | Family compilations by Margaret Dickson Falley. The... | |
| 3488 | National Library of Ireland | Ms10879 | 1956 | Miscellaneous letters and papers, including a brief ... | Eoin Mac Neill Papers |
| 9389 | National Library of Ireland | Ms24230 | 1958 | Account of the Staunton family in the hand of Sybil ... | Le Brocquy Papers |
| 9395 | National Library of Ireland | Ms24240 | 1957-1958 | Ten letters from Blanaid Salkeld to Sybil Le Brocquy... | Le Brocquy Papers |
| 10850 | National Library of Ireland | Ms21241 | 1958 | Letter to Gallagher from Estella Solomons acknowledg... | Frank Gallagher Papers |
| 10851 | National Library of Ireland | Ms21242 | 1958 | Letters [to the editor of The Sunday Press?] from Ma... | Frank Gallagher Papers |
| 11080 | National Library of Ireland | Ms19439 | 1957 | The nocturnes of John Field by Sister M Scholastica ... | |
| 496 | National Maternity Hospital | NMH/104 | 1958 | Photograph album of first Charter Day celebrations, ... | |
| 16555 | Presentation Sisters Congregational Archives | DON1/55 | 1956 | Statutes for new central noviciate of the Institute... | Presentation Sisters South West Province - St Joseph's Convent, Doneraile |
| 8416 | Public Record Office of Northern Ireland | T/2636/1 | 1602-1956
1957 | A short history of the Willis family of County Ferma... | |
| 7222 | Public Record Office of Northern Ireland | D/3152 | 1956-1957 | Correspondence relating to a memorial to Miss Rosamu... | |
| 21470 | Queen's University Belfast Special Collections and Archives | MS74 | 1925-1926
1956-1957 | Mss1/110-113 Northern Ireland, Ministry of Home Affa... | QUB Miscellaneous Manuscripts |
| 22065 | Representative Church Body Library | B5 | 1937-1954
1958 | St John's Parish, Register of Marriages:April 19... | St Fin Barre's Cathedral Cork Archive |
| 4329 | RTÉ Archive (Sound) | AA3975 | 1958 | City Newsreel: Ivvy Beson's Girls Brass Band, 29 Sep... | Sound Archive |
| 5196 | RTÉ Stills Library | 0335/053 | 1957 | Three women ironing clothes in the Court Laundry, Du... | Illustration Library |
| 22667 | Services Industrial Professional Technical Union (SIPTU) | | 1956-1958 | Cootehill Branch:Registers, 1956-1958 | Irish Transport and General Workers Union |
| 22785 | Tower Museum, Derry-Londonderry | | 1958 | Printed flyer advertising a public meeting of London... | |
| 6419 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs10548 | 1957 | Newscuttings, includes: Article on Norah Mac Guinnes... | Dorothy Kay Papers |
| 10248 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs9932/33 | 1920-1929
1957 | A letter of reminiscences and family history by Mary... | |
| 10327 | Trinity College Dublin, Manuscripts and Archives Department | TCDMss4630-4649/2993a | 1956 | P L P[ielou], `James S Cousins and Mrs Margaret Cous... | O'Sullivan/Solomons Collection |
| 18763 | Trinity College Dublin, Manuscripts and Archives Department | TCD MS 11588/1/3 | 1956 | Part of a typed chronology, produced by the Bureau o... | Michael McDunphy Papers |
| 3662 | UCC Special Collections & Archives | UC/DC746 | 1958 | Note in Irish from Bríd Ní Chonmaigh r... | The Papers of Daniel Corkery |
| 9908 | UCC Special Collections & Archives | UC/COC/5/D/I/509 | 1958 | Note from Sister M St Anne, Ursuline Convent, Thurle... | Cormac Ó Cuilleanáin Papers |
| 13783 | UCC Special Collections & Archives | U191 | 1958 | Pamphlet entitled 'Unpublished discarded proof of "C... | |
| 21956 | UCC Special Collections & Archives | U175 | 1721-1807
1945
1957 | Box 6 contains documents relating to Skiddy's Almsho... | |
| 19435 | Westmeath County Archives Department | | 1956 | Longford/Westmeath Joint Library Committee Receipt B... | Longford-Westmeath Joint Library Committee |