| 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 |
| 16440 | Armagh Diocesan Archive (RC) | | 1854 | Material relating to the Society of the Holy Childho... | 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 |
| 19115 | Armagh Robinson Library | Volume 3 | 1855 | Papers on and a report of the Vaughan Charity School... | Primate J.G. Beresford Papers |
| 16206 | Birr Castle Archives | A-W | 1855 | J/22: Letters to 3rd Earl and Lady Rosse from Nassau... | The Rosse Papers |
| 12156 | Cloyne Diocesan Archive (RC) | Box F | 1854-1855 | 1795.07/32/1854 Statement of Anne Kiely relating to ... | Bishop T. Murphy |
| 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 |
| 17046 | Cloyne Diocesan Archive (RC) | Box F | 1855 | 1796.07/14/1855 Letter from Mrs Ashlin, Dublin, to ... | 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 |
| 19514 | Cloyne Diocesan Archive (RC) | Box E | 1854 | 1795.05/3/1854 Letter from J Russell, Cloyne, to Bi... | Bishop Timothy Murphy Papers |
| 19517 | Cloyne Diocesan Archive (RC) | Box E | 1854 | 1795.07/21/1854 Small envelope containing National ... | Bishop Timothy Murphy Papers |
| 19518 | Cloyne Diocesan Archive (RC) | Box E | 1854 | 1785.04/2/1854 Indenture between Bishop T Murphy a... | Bishop Timothy Murphy Papers |
| 19519 | Cloyne Diocesan Archive (RC) | Box E | 1854 | 1795.04/3/1854 Letter from J O'Fenall, Kingston, to... | Bishop Timothy Murphy Papers |
| 19520 | Cloyne Diocesan Archive (RC) | Box E | 1854 | 1795.04/4/1854 Detailed observations by the teacher... | Bishop Timothy Murphy Papers |
| 19516 | Cloyne Diocesan Archive (RC) | Box E | 1854 | 1795.06/2/1854 Letter from Angelina Gould, Youghal, ... | Bishop Timothy Murphy Papers |
| 19521 | Cloyne Diocesan Archive (RC) | Box E | 1854 | 1795.04/5/1854 Letter from J O'Fenall, Kingston, to... | Bishop Timothy Murphy Papers |
| 23216 | Cork City and County Archives | U15B/ | 1854 | P/A22 Cork Ladies Auxiliary to the Irish Church Miss... | Thomas Hewitt Papers |
| 18557 | Dublin Diocesan Archives (RC) | AB4 (File II, Nuns) | 1855 | 15 January 1855, Frances Ball, Rathfarnham, to Archb... | Cullen Papers |
| 3155 | Dún Laoghaire-Rathdown County Council | LA1/301 | c.1854 | Housing of the Working Classes, Copy of will of Sara... | Blackrock |
| 3156 | Dún Laoghaire-Rathdown County Council | LA1/302 | 1854 | Housing of the Working Classes: Copy probate of the ... | Blackrock |
| 1457 | Fingal County Archive | 94/P/2-94/P/1 | 1854
1876
1883
1885 | Small Collections Box 4 94/P/2 Records of Lakelands ... | Small Collections |
| 23201 | Good Shepherd Sisters | | 1848
1854 | Limerick Convent:Administration Property 1848 - Buil... | |
| 48 | Irish Dominican Congregation Archives | F9 | 1854 | Letter, Decree to Nuns OP in Latin, 13 July 1854, re... | Dominican Archives, Cabra |
| 20870 | Kildare Local Studies, Genealogy and Archives Department | | 1854
1857 | Naas Town Commissioners Rate Books, January 1857, 18... | Naas Urban District Council |
| 13855 | Limerick Museum | AQNO (1987.158) | c.1854 | Map, photograph of, framed. Plan of Limerick city, c... | |
| 14559 | Mayo Local History Department | | 1854 | Digitised copy of Encumbered Estates Court Records f... | Incumbered estates/Landed Estates Court |
| 21539 | Monaghan County Museum | | 1854 | AG1-2 Photocopied note and envelope, 4 April 1854. '... | Moorehead Letters |
| 8877 | National Archives of Ireland | 1045/5/6/14 | 1854 | General Directions given to Nurses, October 1854. | Protestant Orphan Society |
| 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 |
| 2004 | National Library of Ireland | Ms7934 | 1854 | Glynn notebook, no. 76. Copies of poems and literar... | |
| 2419 | National Library of Ireland | Ms12941 | 1854 | Accounts of personal expenditure mainly on charity, ... | |
| 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... | |
| 9436 | National Library of Ireland | Ms24558 | 1854 | Diary of Lady Louth, 1854. | |
| 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... | |
| 11594 | National Library of Ireland | Ms12377 | 1854 | Castlebar Poor Law Union Minute Book, 18 March 1854-... | |
| 11595 | National Library of Ireland | Ms12378 | 1855 | Castlebar Poor Law Union Minute Book, 17 March 1855-... | |
| 11608 | National Library of Ireland | Ms12241 | 1854 | Belmullet Poor Law Union Minute Book, 6 May 1854-30 ... | |
| 11618 | National Library of Ireland | Ms12216 | 1854-1855 | Ballina Poor Law Union Minute Book, 9 September 1854... | |
| 18930 | Offaly Archives | OCL PTC40/3 | 1855 | 1 Drawing: 11 June 1855, drawing designs for lowerin... | Records of Parsonstown Town Commissioners |
| 16683 | Presentation Sisters Congregational Archives | | 1854 | Booklet published by the Presentation Sisters of San... | Presentation Convent, Kilkenny |
| 6741 | Public Record Office of Northern Ireland | D/2092/1/14 | c.1854 | Papers of Miss Mary King, later the Honourable Mrs W... | Castleward Papers |
| 8065 | Public Record Office of Northern Ireland | T/1641 | c.1855 | 3 volumes of copies of the Encumbered Estates Court ... | |
| 8201 | Public Record Office of Northern Ireland | T/2052/3 | 1854 | Copy of a letter from Mary Getty, Taughey, County An... | Getty Papers |
| 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 |
| 1259 | Religious Society of Friends in Ireland Historical Library | | 1854 | Art: Drawing of Lyons Mills by Lydia Shackleton, 185... | Museum Collection |
| 21483 | Religious Society of Friends, Ulster Quarterly Meeting Archive | | 1854 | Report of Library Committee, 1854. | |
| 22116 | University of Galway Archives | LE6 | 1855 | Copy on an indenture made 14 May 1855 between David ... | Wilson-Lynch Papers |
| 19331 | Westmeath County Archives Department | | 1854 | 222 Miss Maria Fitzgerald and her trustees to the K... | Howard Bury Papers |