| 13106 | Armagh County Museum | 1962/170 | 1841-1842 | Rent Book, Dartry estate, County Armagh for November... | |
| 19120 | Armagh Robinson Library | Volume 7 | 1841 | A letter from Mrs Foster suggesting that her husband... | Primate J.G. Beresford Papers |
| 19121 | Armagh Robinson Library | Volume 7 | 1841 | A letter from Revd. W.H. Foster apologising for his ... | Primate J.G. Beresford Papers |
| 19127 | Armagh Robinson Library | Volume 8 | 1841 | A letter stating that Lady Elizabeth McClintock was ... | Primate J.G. Beresford Papers |
| 19140 | Armagh Robinson Library | Volume 11 | 1842 | A letter from Revd J.C. Crosthwaite to Mr Jones info... | Primate J.G. Beresford Papers |
| 16921 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1735
1823
1842 | Among material located in the filing cabinet:(5) (a)... | Bolton Library Archive |
| 17001 | Cloyne Diocesan Archive (RC) | Box B | 1841 | 1796.20/3/1841 Instruction for reception of Miss Ho... | Bishop W. Keane Papers |
| 17018 | Cloyne Diocesan Archive (RC) | | 1842 | 1793.05/6/1842 extract from letter Rev. P Cullen to ... | Bartholomew Crotty Papers |
| 23223 | Cork City and County Archives | U15B/ | 1842 | P/C 89 Charlotte Hewitt (aunt) to 'My dear Tom&#... | Thomas Hewitt Papers |
| 22928 | Delany Archive | Box Bp/10 File FH/1841/ | 1841 | 27. 31 July 1841 SC Propaganda Fide Rome, to Bishop ... | Papers of Dr Francis Haly, Bishop of Kildare & Leighlin |
| 18812 | Limerick Archives | BG 110 | 1842
1862-1875 | VIII. General Ledgers:BG/110/C/1. March 1842 - Septe... | Limerick Poor Law Union |
| 13107 | Limerick Museum | AQNO (000.1895) | 1841-1842 | Poster. Account of the Governors and Governesses of ... | |
| 14128 | Louth County Archives | | 1841 | Estate of the Right Honourable Sir A Foster. Particu... | |
| 20245 | Meath Local Studies and Family History Department | Box H/ | 1842 | 5 Memorial of deed between John Elvin and Charles Bl... | Mountainstown Documents |
| 20302 | Meath Local Studies and Family History Department | Box A/ | 1841 | 7 Letter, 1841. | Mountainstown Documents |
| 20310 | Meath Local Studies and Family History Department | Box A/ | 1842 | 15 Letter to Arthur Pollock regarding rent, 1842. | Mountainstown Documents |
| 759 | National Archives of Ireland | 999/669 | 1841 | 6 June 1841, Census return for Florence McCarthy and... | |
| 8897 | National Archives of Ireland | M6933/10 | 1821
1822
1839
1840
1841 | Bundle of rentals of various portions of the Blake e... | Ballyglunin Papers |
| 8944 | National Archives of Ireland | M6178/88 | 1842 | Papers relating to the Corranerary Estate of William... | Greville Estate Papers |
| 11523 | National Archives of Ireland | | 1841 | Letter from J. Horan to Mrs Cecilia Rossiter Byrne, ... | Byrne Papers |
| 15397 | National Archives of Ireland | 99/56/10/31 | 1841 | Papers relating to King's County. Castellammare ... | Family and estate records. 1611-1948 |
| 15398 | National Archives of Ireland | 99/56/10/32/1 | 1841 | Papers relating to King's County. Release for lives ... | Family and estate records. 1611-1948 |
| 15452 | National Archives of Ireland | 999/22/2 | 1841 | Marriage Settlement between Patrick Kain, Multifarna... | Small Private Accessions |
| 15486 | National Archives of Ireland | 999/89/1 | 1842 | Probate of Will of Sarah Browne, Baroginstown, Co. K... | Small Private Accessions |
| 169 | National Library of Ireland | Ms18625 | c1842 | Miscellaneous estate and household accounts [Farnham... | Farnham Papers |
| 1948 | National Library of Ireland | Ms8462 | 1841 | A poem on the Blessed Virgin by Felicia Heman with a... | |
| 2313 | National Library of Ireland | Mss5465- 5466 | 1842, 1845 | Two rentals of the Irish estates of A Murray, Esq., ... | Irish Estates of A Murray |
| 2748 | National Library of Ireland | Ms20951 | 1841 | Letter to John D'Alton from his son William, enclosi... | D'Alton Papers |
| 2756 | National Library of Ireland | Ms20,966 | 1841 | Two letters to Kate D'Alton of Dublin from her daugh... | D'Alton Papers |
| 2958 | National Library of Ireland | Ms8844 | 1842 | Documents relating to mortgages, including copies of... | Robert White Papers |
| 2983 | National Library of Ireland | Ms9143 | 1841 | Includes a photocopy of a grant to Mary Thorp, widow... | |
| 2984 | National Library of Ireland | Ms9145 | 1841 | Photocopy of a lease by Samuel Thorp to Mary Thorp, ... | |
| 3478 | National Library of Ireland | Ms10658 | 1842 | Family letters and other documents of the Smyths of ... | Smyth Papers |
| 6911 | National Library of Ireland | Ms18942 | 1842 | List of tenants on the lands of Herbertstown, barony... | Smyth Papers |
| 9345 | National Library of Ireland | Ms23810 | 1841 | Rate Book of the electoral division of Kilcash, Carr... | Ormonde Papers |
| 9462 | National Library of Ireland | Ms24947 | 1842 | Autograph letter of Robert Holt Truell, Paris, to hi... | |
| 9635 | National Library of Ireland | Ms29767(16) | 1841 | Lease by John H Ryan to Anne Doyle, widow, and James... | Hibernian Mining Company Papers |
| 10892 | National Library of Ireland | Ms21703 | 1841 | Three letters of the O'Connell family, includes a no... | |
| 6339 | Public Record Office of Northern Ireland | D/11/1 | 1841 | Deed of trust by Anne Hall, Dublin: subscription of ... | |
| 8181 | Public Record Office of Northern Ireland | T/2006/1 | 1841 | Certified copy of extracts from the 1841 census rela... | |
| 8539 | Public Record Office of Northern Ireland | T/3036/6 | 1841 | Copy of a passenger list of emigrants on board the s... | |
| 8707 | Public Record Office of Northern Ireland | T/881/1 | 1841 | Copy of a portion of census return, including Mary M... | |
| 8235 | Public Record Office of Northern Ireland | T/2146/1 | 1841 | Copy of a newspaper cutting from the Belfast News-Le... | |
| 2271 | RCSI Heritage Collections | LOAn/3/5 | c1841-1842 | Extensive Case Notes of Admissions to Dr Steevens Ho... | Dr Steevens Hospital Case Notes |
| 549 | Religious Society of Friends in Ireland Historical Library | Portfolio 34 | 1841-1842 | 3 Resignation of membership, Mary L Williamson and ... | Handlists/Portfolio |
| 768 | Religious Society of Friends in Ireland Historical Library | QMII/P1 | 1842 | Poor Committees and Charities: Rules for management ... | Munster Quarterly Meeting |
| 1292 | Religious Society of Friends in Ireland Historical Library | | 1841 | Dress and accessories: Wedding dress of Elizabeth Ha... | Museum Collection |
| 13105 | Tipperary Museum of Hidden History | AQNO1995.410 | 1841 | Lease, Viscount Lismore to Mary Coughlan, Gurteenbeh... | |
| 13109 | Tipperary Museum of Hidden History | AQNO1995.434 | 1842 | Lease, Viscount Lismore to Bridget Wade, Clogheen, 1... | |
| 10437 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs6457g | 1842 | Travel Journal of Adelaide Hart, 1842, afterwards ma... | Dillon Papers |
| 10508 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs3989 | 1841 | Anthology of poems concerning Conty Kilkenny familes... | |
| 995 | UCC Special Collections & Archives | BL/EP/G/184-204/A/5 | 1841 | Legal case papers including a number relating to wom... | Grehan Estate Collection |
| 13108 | University of Galway Archives | P3 | 1842
1845 | Spiritual writings, including retreat notes and repo... | |
| 13847 | University of Galway Archives | P14 | c1841 | A scrapbook, kept by a lady in c1841, containing pri... | |
| 19325 | Westmeath County Archives Department | | 1841 | 184 Richard Swift Esq. to Catherine Louisa Marlay, ... | Howard Bury Papers |