| 13157 | Armagh County Museum | 1941/57 | 1855 | Memorandum of Agreement between Portadown and Dungan... | |
| 16419 | Armagh Diocesan Archive (RC) | | 1855 | Letter of Sister M. de Sales, St Malachy's, Dund... | Most Reverend John Dixon Archive |
| 16420 | Armagh Diocesan Archive (RC) | | 1855 | Letter of Sister M. de Sales, St Malachy's, Dund... | Most Reverend John Dixon Archive |
| 16421 | Armagh Diocesan Archive (RC) | | 1856 | Letter of Sister M. de Sales, St Malachy's, Dund... | Most Reverend John Dixon Archive |
| 16439 | Armagh Diocesan Archive (RC) | | 1856 | Material related to the Dominicans - Sienna Convent:... | Most Reverend John Dixon Archive |
| 16441 | Armagh Diocesan Archive (RC) | | 1855
1856
1861 | Miscellaneous:Letter of Ann Mullin, Ballygawly, addr... | Most Reverend John Dixon Archive |
| 19106 | Armagh Robinson Library | Volume 1 | 1856 | A letter from Dean H.V. Tighe objecting on principle... | Primate J.G. Beresford Papers |
| 19107 | Armagh Robinson Library | Volume 1 | 1856 | A letter from Revd B. Newcombe, Drogheda, asking for... | Primate J.G. Beresford Papers |
| 19115 | Armagh Robinson Library | Volume 3 | 1855 | Papers on and a report of the Vaughan Charity School... | Primate J.G. Beresford Papers |
| 14598 | Belfast Central Library | ST24 | 1856
1859
1903 | Manuscript letter from Walter Strickland to J.F. Big... | Francis Joseph Bigger Archive |
| 16206 | Birr Castle Archives | A-W | 1855 | J/22: Letters to 3rd Earl and Lady Rosse from Nassau... | The Rosse Papers |
| 17042 | Cloyne Diocesan Archive (RC) | Box F | 1855 | 1796.05/1/1855 Bishop W Keane's letter to priests, ... | Bishop W. Keane Papers |
| 17044 | Cloyne Diocesan Archive (RC) | Box F | 1855 | 1796.08/6/1855 Letter of Mr J Nagle to Bishop W Kea... | Bishop W. Keane Papers |
| 17045 | Cloyne Diocesan Archive (RC) | Box F | 1855 | 1796.08/7/1855 Marriage settlement of William McCar... | Bishop W. Keane Papers |
| 17043 | Cloyne Diocesan Archive (RC) | Box F | 1855 | 1796.07/7/1855 Letter of Mrs Ashlin Dublin to Bisho... | Bishop W. Keane Papers |
| 17046 | Cloyne Diocesan Archive (RC) | Box F | 1855 | 1796.07/14/1855 Letter from Mrs Ashlin, Dublin, to ... | Bishop W. Keane Papers |
| 17047 | Cloyne Diocesan Archive (RC) | Box F | 1856 | 1796.04/2/1856 letter from Bishop T Murphy, Fermoy,... | Bishop W. Keane Papers |
| 17049 | Cloyne Diocesan Archive (RC) | Box F | 1856 | 1796.07/10/1856 Letter from Mrs Ashlin, Birmingham,... | Bishop W. Keane Papers |
| 17050 | Cloyne Diocesan Archive (RC) | Box F | 1856 | 1796.04/16/1856 Letter from Bishop D Vaughan, Nenag... | Bishop W. Keane Papers |
| 17051 | Cloyne Diocesan Archive (RC) | Box F | 1856 | 1796.04/17/1856 Letter from Bishop T Murphy, Fermoy... | Bishop W. Keane Papers |
| 17052 | Cloyne Diocesan Archive (RC) | Box F | 1856 | 1796.07/12/1856 letter and envelope from W Duhig, B... | Bishop W. Keane Papers |
| 17048 | Cloyne Diocesan Archive (RC) | Box F | 1856 | 1796.07/9/1856 letter from Joseph Coppinger, Dundru... | Bishop W. Keane Papers |
| 17053 | Cloyne Diocesan Archive (RC) | Box F | 1856 | 1796.06/3/1856 Letter from Sister M Teresa Maher, M... | Bishop W. Keane Papers |
| 17054 | Cloyne Diocesan Archive (RC) | Box F | 1856 | 1796.06/4/1856 Plan of ground floor of convent, encl... | Bishop W. Keane Papers |
| 17055 | Cloyne Diocesan Archive (RC) | Box F | 1856 | 1796.06/5/1856 Plan of 2nd storey of convent, enclos... | Bishop W. Keane Papers |
| 23219 | Cork City and County Archives | U15B/ | 1856 | P/A55 St Luke's male and female infant daily sch... | Thomas Hewitt Papers |
| 18548 | Dublin Diocesan Archives (RC) | AB4 (File I, Laity) | 1856 | January-June 1856:8 February, Margaret Aylward, Dubl... | Cullen Papers |
| 18549 | Dublin Diocesan Archives (RC) | AB4 (File I, Laity) | 1856 | January-June 185610 February, (Incomplete) Agnes M. ... | Cullen Papers |
| 18550 | Dublin Diocesan Archives (RC) | AB4 (File I, Laity) | 1856 | January-June 1856:17 February, Misses Aylward and O&... | Cullen Papers |
| 18551 | Dublin Diocesan Archives (RC) | AB4 (File I, Laity) | 1856 | January-June 1856:18 March, Walter Crofton, Governme... | Cullen Papers |
| 18552 | Dublin Diocesan Archives (RC) | AB4 (File I, Laity) | 1856 | January-June 1856:26 March, 6 Reports of the Dublin ... | Cullen Papers |
| 18553 | Dublin Diocesan Archives (RC) | AB4 (File I, Laity) | 1856 | January-June 1856:31 March, Anne Scully to cardinal ... | Cullen Papers |
| 18554 | Dublin Diocesan Archives (RC) | AB4 (File I, Laity) | 1856 | January-June 1856:27 April, The Misses Jennings, Dub... | Cullen Papers |
| 18555 | Dublin Diocesan Archives (RC) | AB4 (File I, Laity) | 1856 | January-June 1856:4 June, Emily Eustace, Dublin to A... | Cullen Papers |
| 18557 | Dublin Diocesan Archives (RC) | AB4 (File II, Nuns) | 1855 | 15 January 1855, Frances Ball, Rathfarnham, to Archb... | Cullen Papers |
| 18558 | Dublin Diocesan Archives (RC) | AB4 (File II, Nuns) | 1855-1856 | 1 January 1856, Female Orphan House, Harold's Cr... | Cullen Papers |
| 18559 | Dublin Diocesan Archives (RC) | AB4 (File II, Nuns) | 1856 | 28 January 1856, Mary of Immaculate Conception, Lake... | Cullen Papers |
| 18560 | Dublin Diocesan Archives (RC) | AB4 (File II, Nuns) | 1856 | 3 February 1856, M. F.X. Julia Lynch, Carmel, Loughr... | Cullen Papers |
| 18561 | Dublin Diocesan Archives (RC) | AB4 (File II, Nuns) | 1856 | 8 February 1856, M. F.X. Julia Lynch, Carmel, Loughr... | Cullen Papers |
| 18562 | Dublin Diocesan Archives (RC) | AB4 (File II, Nuns) | 1856 | 8 May 1856, Frances Ball, Rathfarnham, to Archbishop... | Cullen Papers |
| 18563 | Dublin Diocesan Archives (RC) | AB4 (File II, Nuns) | 1856 | 16 August 1856, Sr M. Fides McOwen, Carmel, Blanchar... | Cullen Papers |
| 22251 | Irish Jesuit Archives | J27/ | 1855-1856 | 2 Letter from [ ], Belfast to Fr Russell concerning ... | Papers of Fr Matthew Russell, SJ (1834 - 1912) |
| 13159 | Limerick Museum | AQNO (0000.1681) | 1856 | Letter, Catherine Hayes to John Rogers. Belfast, 16 ... | |
| 14144 | Louth County Archives | | 1855-1856 | Killany Tenants Rent Book, 1855-1856. | |
| 20612 | Meath Local Studies and Family History Department | Box E/ | 1856 | 23 Lease of land to William McKeever at Yellowleas (... | Mountainstown Documents |
| 15346 | National Archives of Ireland | 99/56/9/6 | 1855 | Papers relating to Co. Donegal. Settlement on the ma... | Family and estate records. 1611-1948 |
| 15500 | National Archives of Ireland | 999/113/6 | 1855 | Copy probate of the will of Anna Macartney, Dublin C... | Small Private Accessions |
| 1564 | National Library of Ireland | Ms3459 | 1856 | Miscellaneous correspondence which includes two lett... | |
| 2536 | National Library of Ireland | Ms4823 | c1855 | [? Original] song by W Vincent Wallace, entitled 'Wh... | |
| 2966 | National Library of Ireland | Ms8901 | 1791-1800
1855 | Rentals and other documents. These include rentals o... | |
| 3737 | National Library of Ireland | Ms13408 | 1856 | Includes two letters of Florence Nightingale to Lady... | Monteagle Papers |
| 9778 | National Library of Ireland | Ms18491 | 1855 | Ten letters from Robert McDonnell, mainly to his mot... | |
| 10097 | National Library of Ireland | Ms16389 | c1855 | Book of poems by Rose Eliza Benn, Roseville, Castlec... | |
| 11595 | National Library of Ireland | Ms12378 | 1855 | Castlebar Poor Law Union Minute Book, 17 March 1855-... | |
| 11609 | National Library of Ireland | Ms12342 | 1856 | Belmullet Poor Law Union Minute Book, 22 March 1856-... | |
| 11620 | National Library of Ireland | Ms12217 | 1855-1856 | Ballina Poor Law Union Minute Book, 4 August 1855-2 ... | |
| 11621 | National Library of Ireland | Ms12218 | 1856 | Ballina Poor Law Union Minute Book, 2 February 1856-... | |
| 20044 | Newtown School, Waterford | F1-16 | 1856 | F/14 Quarterly Meeting Rules, 1856. | Quaker Papers |
| 18930 | Offaly Archives | OCL PTC40/3 | 1855 | 1 Drawing: 11 June 1855, drawing designs for lowerin... | Records of Parsonstown Town Commissioners |
| 6328 | Public Record Office of Northern Ireland | D/1047 | 1853
1856 | D/1047/1 Emigrant letter from Mrs Jane Fleming, New... | |
| 6515 | Public Record Office of Northern Ireland | D/1364/ | 1856
1900 | D/1364/J/21 Letters from William Young, Fenaghy, Cou... | Young Papers |
| 6532 | Public Record Office of Northern Ireland | D/1449/ | 1856 | D/1449/12/351-364 Letters from Laura C. Arbuthnot to... | Lenox-Conyngham Papers |
| 7167 | Public Record Office of Northern Ireland | D/300/2/1/85/5 | 1856 | Lease of limestone quarries in Glynn, County Antrim,... | Killen Papers |
| 8065 | Public Record Office of Northern Ireland | T/1641 | c.1855 | 3 volumes of copies of the Encumbered Estates Court ... | |
| 8581 | Public Record Office of Northern Ireland | T/3755 | 1855 | Copy of a letter from Mary, Rosey and Ellen Fern[n] ... | |
| 1207 | Religious Society of Friends in Ireland Historical Library | P224 | 1855 | Red Book in Filing Cabinet 3 Wedding group of Samue... | Photographic Collections |
| 10043 | Representative Church Body Library | B2 | 1856 | Marriage Licence awarded to Henry Reddin and Margare... | St Fin Barre's Cathedral Cork Archive |
| 10411 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs5116 | 1798
1850
1856
1911 | Account of the rebellion of 1798 in Wexford dicated ... | Arnold Family |
| 22116 | University of Galway Archives | LE6 | 1855 | Copy on an indenture made 14 May 1855 between David ... | Wilson-Lynch Papers |