| 13112 | Armagh County Museum | 1978/29 | 1843 | Monthly returns of warrants and arrests, Constabular... | |
| 13113 | Armagh County Museum | 1978/30 | 1843 | Monthly returns of warrants and arrests, Constabular... | |
| 19124 | Armagh Robinson Library | Volume 7 | 1843 | A letter from H.L. Prentiss to Primate Beresford reg... | 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 |
| 16210 | Birr Castle Archives | A-W | 1843 | K/17: Includes a letter to 3rd Earl of Rosse from Ma... | The Rosse Papers |
| 16921 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1735
1823
1842 | Among material located in the filing cabinet:(5) (a)... | Bolton Library Archive |
| 16932 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1843 | 19th and 20th century correspondence, not catalogued... | Looney Collection |
| 4290 | Church of Ireland Centre | Serial No172 | 1843 | General Correspondence, III:Miss J. Edkins to Commit... | Records of the Society for Promoting the Education of the Poor of Ireland |
| 17002 | Cloyne Diocesan Archive (RC) | Box B | 1843 | 1796.07/1/1843 Receipt for £1 from Mrs Duggan,... | Bishop W. Keane Papers |
| 17003 | Cloyne Diocesan Archive (RC) | Box B | 1843 | 1796.20/1/1843 Sermon prepared for reception of Miss... | Bishop W. Keane Papers |
| 17018 | Cloyne Diocesan Archive (RC) | | 1842 | 1793.05/6/1842 extract from letter Rev. P Cullen to ... | Bartholomew Crotty Papers |
| 17019 | Cloyne Diocesan Archive (RC) | | 1843 | 1793.06/1/1843 photocopy of a letter M O'Sulliva... | Bartholomew Crotty Papers |
| 17163 | Cloyne Diocesan Archive (RC) | Box X | 1843 | 1792.08/1/1843 Letter of Miss E. MacSweeny, Calcutta... | Revd. Denis Collins |
| 23223 | Cork City and County Archives | U15B/ | 1842 | P/C 89 Charlotte Hewitt (aunt) to 'My dear Tom&#... | Thomas Hewitt Papers |
| 1397 | Cork Public Museum | AQNO1957:44 | 1843 | Sketch of a woman and child, crayon sketch at Carrig... | |
| 3147 | Dún Laoghaire-Rathdown County Council | LA1/258 | 1843 | Legal Records: Copy lease: Revd R.F. Vavassour, 1st ... | Blackrock |
| 18812 | Limerick Archives | BG 110 | 1842
1862-1875 | VIII. General Ledgers:BG/110/C/1. March 1842 - Septe... | Limerick Poor Law Union |
| 13111 | Limerick Museum | AQNO (0000.1896) | 1842-1843 | Poster. Account of the Governors and Governesses of ... | |
| 20245 | Meath Local Studies and Family History Department | Box H/ | 1842 | 5 Memorial of deed between John Elvin and Charles Bl... | Mountainstown Documents |
| 20292 | Meath Local Studies and Family History Department | Box A/ | 1843 | 25 Essex and De Ros Estates, 1843. | Mountainstown Documents |
| 20310 | Meath Local Studies and Family History Department | Box A/ | 1842 | 15 Letter to Arthur Pollock regarding rent, 1842. | Mountainstown Documents |
| 1858 | Monaghan County Museum | 1982:78 | 1843 | Grand Jury Accounts and Presentments 1843. | |
| 8944 | National Archives of Ireland | M6178/88 | 1842 | Papers relating to the Corranerary Estate of William... | Greville Estate Papers |
| 11520 | National Archives of Ireland | | 1843 | Letter from Miss MacCarthy to the Misses Rossiter re... | Byrne Papers |
| 15486 | National Archives of Ireland | 999/89/1 | 1842 | Probate of Will of Sarah Browne, Baroginstown, Co. K... | Small Private Accessions |
| 15533 | National Archives of Ireland | 999/141/8 | 1843 | Marriage licence for William Horan, Lismore and Cath... | Small Private Accessions |
| 169 | National Library of Ireland | Ms18625 | c1842 | Miscellaneous estate and household accounts [Farnham... | Farnham Papers |
| 2215 | National Library of Ireland | Ms10171 | 1826
1832
1843
1861-1862 | Papers and letters of the Ussher family of Cappagh, ... | Ussher Papers |
| 2313 | National Library of Ireland | Mss5465- 5466 | 1842, 1845 | Two rentals of the Irish estates of A Murray, Esq., ... | Irish Estates of A Murray |
| 2881 | National Library of Ireland | Ms1503 | 1843 | An account of the life of Daniel O'Connell by his da... | |
| 2949 | National Library of Ireland | Ms8795 | 1842-1843 | Correspondence of James O'Donovan, County Cork and E... | |
| 2958 | National Library of Ireland | Ms8844 | 1842 | Documents relating to mortgages, including copies of... | Robert White Papers |
| 3478 | National Library of Ireland | Ms10658 | 1842 | Family letters and other documents of the Smyths of ... | Smyth Papers |
| 3627 | National Library of Ireland | Ms12809 | 1842-1843 | Rental of the Country Leitrim estate of the 2nd Earl... | Leitrim Papers |
| 6911 | National Library of Ireland | Ms18942 | 1842 | List of tenants on the lands of Herbertstown, barony... | Smyth Papers |
| 9462 | National Library of Ireland | Ms24947 | 1842 | Autograph letter of Robert Holt Truell, Paris, to hi... | |
| 9591 | National Library of Ireland | Ms29805(12) | 1843 | Bog book, Garryhill estate, Carlow, 1843. | Bessborough Papers |
| 9624 | National Library of Ireland | Ms27348 | 1843 | Ejectment orders on Byrne lands, Annefield estate, C... | O'Bryne Papers |
| 10773 | National Library of Ireland | Ms20375 | 1843 | Letter to Charlotte Streatfield, mostly relating to ... | O'Hara Papers |
| 11040 | National Library of Ireland | Ms18624 | 1842-1843 | Arrears due on the Farnham estate giving list of ten... | Farnham Papers |
| 11551 | National Library of Ireland | MsG389/60 | [1843] | Letter to John (O) Daly from Harriet Madden, 26 July... | |
| 21397 | Our Lady's Hospital, Cork | | 1843 | Copy of An Account of Salaries, 1843. | |
| 7155 | Public Record Office of Northern Ireland | D/2966/40/1 | 1843 | Letter about wages in cotton mills in Glasgow and Be... | |
| 7501 | Public Record Office of Northern Ireland | D/456/37 | c.1843 | Draft appeal by some ladies in Belfast to Lady Doneg... | Drennan Papers |
| 8211 | Public Record Office of Northern Ireland | T/2076/1 | 1843 | Copy of a letter from Amy Douglas, Newtownstewart, C... | |
| 768 | Religious Society of Friends in Ireland Historical Library | QMII/P1 | 1842 | Poor Committees and Charities: Rules for management ... | Munster Quarterly Meeting |
| 4119 | Royal Irish Academy | 12/W/1 | 1843 | Oil painting on panel of Lady Morgan, painted in Lon... | |
| 13109 | Tipperary Museum of Hidden History | AQNO1995.434 | 1842 | Lease, Viscount Lismore to Bridget Wade, Clogheen, 1... | |
| 10417 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs4998 | 1814
1843 | Prose translation of `Sintram' by Baron Fouque, c181... | Arnold-Forster |
| 10437 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs6457g | 1842 | Travel Journal of Adelaide Hart, 1842, afterwards ma... | Dillon Papers |
| 13108 | University of Galway Archives | P3 | 1842
1845 | Spiritual writings, including retreat notes and repo... | |
| 19339 | Westmeath County Archives Department | | 1843 | 266 Maria Gerrard and Elizabeth Gerrard, widow, 1st... | Howard Bury Papers |