| 19183 | Adelaide Hospital | TCD MS 11270/12/1-7 | c.1870-1999 | 12/ Scrapbooks/newspaper clippings Volume entitled &... | Adelaide Hospital Archive |
| 14278 | Alexandra College | | 1866-1870
1872
1874
1891 | 1 file, containing:1st Prospectuses, 1866-1868.1st R... | |
| 12787 | Ardagh and Clonmacnoise Diocesan Archives (RC) | | 1853-1870
1871-1950 | There are approximately 370 box files and folders of... | |
| 14158 | Ardagh and Clonmacnoise Diocesan Archives (RC) | | 1870 | Letter no 233 From P. Dawson, Carrick-On-Shannon, co... | McCabe Papers |
| 14214 | Ardagh and Clonmacnoise Diocesan Archives (RC) | | 1870 | Letter no 232 From Lord Granard, expressing great t... | McCabe Papers |
| 14222 | Ardagh and Clonmacnoise Diocesan Archives (RC) | | 1870 | Letter no 265 From J. Reynolds, Longford, stating th... | McCabe Papers |
| 16214 | Birr Castle Archives | A-W | 1870 | M/18: Quarto recipe book kept by Miss Edith Cromer, ... | The Rosse Papers |
| 16237 | Birr Castle Archives | A-W | 1870-1945 | P: 12 photograph albums including group and individu... | The Rosse Papers |
| 24458 | Brother Allen Archive | Box 200 | 1870 | Programme for Mrs O'Donovan Rossa's readings, 19 Oct... | Brother Allen Archival Collection |
| 16716 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1870-1910
1911-1916 | Vestry Minute Books, Parish of Galbally: 1870-1910 1... | Bolton Library Archive |
| 16721 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1870-1942 | Church of Ireland Register of Vestrymen, Galbally Pa... | Bolton Library Archive |
| 16723 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1870-1882
1910-1918 | Church of Ireland Parochial Account Books, Galbally:... | Bolton Library Archive |
| 16738 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1790-1831
1832-1870
1894-1906
1951-1959 | Doon Vestry Minute Books: 1790-1831 1832-1870, with ... | Bolton Library Archive |
| 16739 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1870-1893
1951 | Church of Ireland Register of Vestry men, Doon, 1870... | Bolton Library Archive |
| 16743 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1870-1884 | Church of Ireland Register of Vestrymen, Kilshane, 1... | Bolton Library Archive |
| 16753 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1855-1870
1875-1881 | Parish of Killoughley, Annaghmere, Kings County, Rev... | Bolton Library Archive |
| 16776 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1870-1934 | Church of Ireland Register of Vestrymen, Tipperary, ... | Bolton Library Archive |
| 16777 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1870-1970 | Church of Ireland Minute Books, Tipperary: 1885-1970... | Bolton Library Archive |
| 16786 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1870-1962 | Church of Ireland Diocesan Synod, Cashel, 1870-1962,... | Bolton Library Archive |
| 16799 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1846-1870 | Register of marriages, Toem, 1846-1870, 1 volume. | Bolton Library Archive |
| 16802 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1870-1871 | Church of Ireland Treasurer's Account Book, Cashel, ... | Bolton Library Archive |
| 16816 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1854-1870 | Marriage Notice Books, Diocese of Cashel and Emly:18... | Bolton Library Archive |
| 16849 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1870-1988 | Ballintemple Register of Vestrymen, 1870-1988, 1 vol... | Bolton Library Archive |
| 16851 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1870-1934 | General Account Book Dundrum Church, Ballintemple pa... | Bolton Library Archive |
| 16852 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1870-1885 | Ballintemple Sustentation Fund, 1870-1885, 1 volume. | Bolton Library Archive |
| 16853 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1870-1883
1884-1921
1922
1989 | Register of Vestrymen: Ballysheehan, 1870-1883 With ... | Bolton Library Archive |
| 16858 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1870-1961 | Roll of Registered Vestrymen, 1870-1961, Clonoulty, ... | Bolton Library Archive |
| 16867 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1833-1870 | Alhassel Parish Accounts, 1833-1870, financial accou... | Bolton Library Archive |
| 16871 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1870-1979 | Church of Ireland, Register of Vestrymen, Alhassel, ... | Bolton Library Archive |
| 16885 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1809-1869
1870-1910
1912-1923 | Vestry Minute Books, Cullen: 1809-1869 1912-1923, wi... | Bolton Library Archive |
| 16900 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1845-1870 | Marriage Register, Shronell, 1845-1870, 1 volume. | Bolton Library Archive |
| 16901 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1870-1892 | Sustentation Fund, Ballysheehan, 1870-1892, 1 volume... | Bolton Library Archive |
| 16903 | Cashel, Ferns and Ossory Diocesan Archive (CoI) | | 1870-1872 | Register of Vestrymen, Shronell, 1870-1872, with ins... | Bolton Library Archive |
| 4430 | Clare County Archives | 371.219 | 1870-1940 | Register of Kilshany Female National School, 1870-19... | |
| 14384 | Clare County Archives | | 1870-1914 | Lawrence Photographic Collection (Clare):Photos from... | Clare County Library Photographic Archive |
| 13196 | Cork City and County Archives | U1 | 1870-1900 | Photographs of the Aldworth family, Newmarket, Count... | Aldworth photograph album |
| 23804 | Cork City and County Archives | U183 | 1826-1870 | Vestry Book 1826-1870. | |
| 24049 | County Museum, Dundalk | Lot 229 | 1870 | Letter of thanks from Anne Cullen, Secretary of Dund... | |
| 19050 | Cultural Heritage Services Library, Armagh | | 1870-2008 | General Synod of the Church of Ireland: 124 printed ... | |
| 6256 | Derry Central Library | | 1870s-1960s | Collection of c.2,500 photographs relating to the ci... | |
| 1673 | Donegal County Archives | CH/SR/D/27 | 1816-1870
1918 | Grand Jury Material, 1816-1870 Circulars, correspon... | |
| 12967 | Donegal County Archives | | 1870-1971 | The collection includes the following:1 volume, Liff... | Lifford Endowed Schools Collection |
| 3157 | Dún Laoghaire-Rathdown County Council | LA1/304 | 1870 | Housing of the Working Classes: Copy of will of Tere... | Blackrock |
| 3136 | Dún Laoghaire-Rathdown County Council | LA1/216 | 1866-1870 | Letters from the Alliance and Dublin Consumers Gas C... | Blackrock |
| 20434 | Dún Laoghaire-Rathdown County Council | | 1870 | Manuscript note to the Secretary, Blackrock Township... | Records of Dean's Grange Joint Burial Board |
| 19881 | Erasmus Smith Schools Archives | | 1870-1914 | Letters relating to scholarships and schools; 1 box,... | Erasmus Smith Archives |
| 19882 | Erasmus Smith Schools Archives | | 1870-1953 | Letters to the Trust of a general nature, i.e. cover... | Erasmus Smith Archives |
| 19902 | Erasmus Smith Schools Archives | | 1870 | Letters; marks books; address books; registers; admi... | Erasmus Smith Archives |
| 19910 | Erasmus Smith Schools Archives | | 1870-1908 | Letters relating to Trinity College, Dublin exhibiti... | Erasmus Smith Archives |
| 1442 | Fingal County Archive | GJ/4/21- GJ/4/40 | 1853-1870 | Grand Jury Presentments:GJ/4/21 1851 Easter Presentm... | County of Dublin Grand Jury |
| 20465 | Galway County Council Archives | | 1915-1931
1870
1954
1978 | UDC Revised Valuation List:19781915-193118701954 | Ballinasloe Urban District Council & Town Commissioners |
| 23181 | Grand Lodge of Freemasons of Ireland | | 1870-1962 | Finance Minutes, 1870-1962 | Masonic Female Orphan School |
| 4 | Irish Dominican Congregation Archives | A14 | 1844-1870 | Channel Row and Cabra: Account Book, number 11, '... | Dominican Archives, Cabra |
| 12374 | Kilmainham Gaol Museum | 7MS-1B31-8 | 1870 | Blank dance card, Fenian Brotherhood Social Dance, B... | Fenians and Obstructionism |
| 13857 | Kilmainham Gaol Museum | 17PO-1A24-1 | c1870s | Two photographs of Constance Markievicz as a child, ... | Easter Week |
| 2134 | Leitrim Local Studies Department | BG/177/BC/ | 1870-1892 | Inward Letterbooks:1 - Incoming Correspondence 18702... | Manorhamilton Poor Law Union |
| 3087 | Limerick Archives | LA BG/93/A; LA BG/93/AG | 1870-1922 | Minute Books:BG/93/A/1 - May 1870 - November 1870BG/... | Glin Poor Law Union |
| 13195 | Limerick Museum | AQNO (1987.277) | 1870 | Map, Ordance Survey, City of Limerick, 1870, Extent... | |
| 5743 | Louth County Archives | 244-259 | 1870-1917 | 244 Drumconrath Rate Book, September 1885 - Septemb... | Ardee Local Authority Records |
| 5758 | Maynooth University and St Patrick's College, Maynooth | | 1870-1899 | Volume containing speeches etc. from meetings. Index... | Movement for the Parliamentary Enhancement of Women |
| 14558 | Mayo Local History Department | | 1870-1940 | The collection is comprised of photographs depicting... | Wynne Photographic Collection |
| 5652 | Meath Local Studies and Family History Department | BG/133/A/ | 1870-1885 | Minute Books:6 May 1870 - November 187013 January - ... | Oldcastle Poor Law Union |
| 22831 | Methodist Historical Society of Ireland | | 1870-1909
1942-1954 | Belfast District [Methodist] Chapel Sub-Committee:Mi... | |
| 551 | National Archives of Ireland | BG/137/ | 1859-1870 | Rathdown Poor Law Union Minute Books:A31 Half year e... | Rathdown Poor Law Union and Rural District Council |
| 559 | National Archives of Ireland | BG/137/ | 1870-1878 | Rathdown Poor Law Union Minute Books:A54 Half year e... | Rathdown Poor Law Union and Rural District Council |
| 681 | National Archives of Ireland | BG/40/ | 1860-1870 | Balrothery Poor Law Union Minute Books:BG/40/A29 Apr... | Balrothery Poor Law Union and Rural District Council |
| 682 | National Archives of Ireland | BG/40/ | 1870-1879 | Balrothery Poor Law Union Minute Books:BG/40/A49 Mar... | Balrothery Poor Law Union and Rural District Council |
| 4002 | National Archives of Ireland | 1075/28/3 | 1870 | Miscellaneous Monsell Documents: Foreign Office Lond... | |
| 8867 | National Archives of Ireland | 1045/4/8/4 | 1870 | Correspondence, Deeds, Testamentary Documents, Costs... | Protestant Orphan Society |
| 11528 | National Archives of Ireland | | 1867-1870 | Servants' Book, November 1867-January 1870, also som... | Byrne Papers |
| 15168 | National Archives of Ireland | 1144 | 1614-1870 | W.J. Shannon & Co. solicitors. Papers for the Smyth ... | Selection of Private Accessions, 1980-2002 |
| 15187 | National Archives of Ireland | 1178 | 1870-1985 | National School records for Corlespratten, Co. Cavan | National Schools, Private Accessions |
| 15259 | National Archives of Ireland | 2002/31 | 1870-1992 | National School records for Ballyroan National Schoo... | National Schools, Private Accessions |
| 15371 | National Archives of Ireland | 99/56/10/14/13 | 1870 | Papers relating to King's County. Memo by John S. To... | Family and estate records. 1611-1948 |
| 15372 | National Archives of Ireland | 99/56/10/14/14 | 1870 | Papers relating to King's County. Copy settlement on... | Family and estate records. 1611-1948 |
| 15379 | National Archives of Ireland | 99/56/10/21/3 | 1870 | Papers relating to King's County. Grant forever by L... | Family and estate records. 1611-1948 |
| 15399 | National Archives of Ireland | 99/56/10/32/2/i-v | 1870-1874 | Papers relating to King's County. Trench's Trusts an... | Family and estate records. 1611-1948 |
| 15404 | National Archives of Ireland | 99/56/10/36/1/iv | 1870-1893 | Papers relating to King's County. Correspondence rel... | Family and estate records. 1611-1948 |
| 15410 | National Archives of Ireland | 99/56/10/40/2 | 1870 | Papers relating to King's County. Grant for lives by... | Family and estate records. 1611-1948 |
| 15559 | National Archives of Ireland | 999/173/1 | 1870 | Photocopy of report of John Patrick Prendergast, bar... | Small Private Accessions |
| 11179 | National Gallery of Ireland Library | AB116 | 1870-1970 | Watercolour Society of Ireland Exhibition Catalogues... | Watercolour Society of Ireland |
| 151 | National Library of Ireland | Ms18511 | 1870-1905 | Rentals and miscellaneous papers relating to the est... | |
| 161 | National Library of Ireland | Ms18573 | 1868-1870 | 3 letters from C S Parnell to agents relating to dom... | |
| 1536 | National Library of Ireland | Ms2728 | c.1870 | Photostat copy of a notebook of 'Eva' of the... | |
| 1563 | National Library of Ireland | Ms3444 | 1824-1870 | Miscellaneous newspaper clippings compiled by Lord D... | |
| 1954 | National Library of Ireland | Mss4793-4795 | 1860
1865-1866
1869-1870 | Three journals of Lady Alice Howard which include ac... | Wicklow Papers |
| 2494 | National Library of Ireland | Mss3594-3599 | 1852-1870 | Six journals of Caroline Howard, October 1852 - May ... | Wicklow Papers |
| 2905 | National Library of Ireland | Ms8610 | 1864-1870 | Personal letters from John Windele Brady and Catheri... | Revd. William Maziere Brady Papers |
| 2464 | National Library of Ireland | Ms8002 | c1870-c1900 | Letters to Ellen O'Leary from James Brittan, R W Col... | |
| 3480 | National Library of Ireland | Ms10762 | 1870 | Thirty letters to Revd. Canon Thomas Pope, 1870 and ... | F.S. Bourke Collection |
| 9085 | National Library of Ireland | Ms14280 | 1849-1870 | Accounts of annunities and subsciptions to charities... | |
| 9102 | National Library of Ireland | Ms14488 | 1854-1870 | Notes on deeds and indentures, etc., together with p... | Inchiquin Papers |
| 9108 | National Library of Ireland | Mss14605-14611 | 1864-1870 | Rentals and Accounts of the County Limerick estate o... | Inchiquin Papers |
| 9119 | National Library of Ireland | Ms14712 | 1869-1870 | Cash book of C Shaw, a female servant of the O'Brien... | Inchiquin Papers |
| 9228 | National Library of Ireland | Ms14230 | 1870 | Collecting book for the poor rate in the electoral d... | Leslie Papers |
| 9261 | National Library of Ireland | Ms15735 | 1870-1891 | Eighteen autographed letters and three facsimiles of... | |
| 9487 | National Library of Ireland | Ms26127 | c1870-1922 | Manuscript, typescript and printed official reports ... | Joseph Brennan Papers |
| 9568 | National Library of Ireland | Ms29770(133) | 1870 | Appointment under the power of a marriage settlement... | Doyne Papers |
| 9694 | National Library of Ireland | Ms17801 | c1870-1884 | Letters from John and Mary Bermingham in Australia t... | W. A. Henderson Collection |
| 9781 | National Library of Ireland | Ms18511 | 1870-1905 | Rentals and miscellaneous papers relating to the est... | |
| 10027 | National Library of Ireland | Ms17448 | 1870-1930 | Material relating to Luke Dillon, 1870-1930, includi... | Joseph McGarrity Papers |
| 10035 | National Library of Ireland | Ms17717 | 1870-1871 | Bills and receipts relating to the purchases of pers... | |
| 10774 | National Library of Ireland | Ms20378 | 1870-1894 | Seventeen letters, mostly to Messrs Tweedy, Solicito... | O'Hara Papers |
| 10775 | National Library of Ireland | Ms20379 | 1870-1872 | Letters to Annie Charlotte O'Hara from persons seeki... | O'Hara Papers |
| 10837 | National Library of Ireland | Ms21184 | 1859-1870 | Photocopies of four rent receipts and associated ite... | |
| 11003 | National Library of Ireland | Ms18573 | 1868-1870 | Five letters of members of the Parnell family, inclu... | |
| 11071 | National Library of Ireland | Ms19293 | 1870-1872 | Receipts and Payments Book of the estate of Viscount... | Powerscourt Papers |
| 11958 | National Library of Ireland | Mss12230-12237 | 1865-1870 | Ballina Poor Law Union Minute Books: Ms12,230 July ... | Ballina Poor Law Union |
| 12258 | National Library of Ireland | Mss12395-12410 | 1870-1879 | Castlebar Poor Law Union Minute Books, May 1870-July... | Castlebar Poor Law Union |
| 12259 | National Library of Ireland | Mss12380-12394 | 1859-1870 | Castlebar Poor Law Union Minute Books, September 185... | Castlebar Poor Law Union |
| 12260 | National Library of Ireland | Mss12491-12506 | 1870-1880 | Claremorris Poor Law Union Minute Books, August 1870... | Claremorris Poor Law Union |
| 12265 | National Library of Ireland | Mss12643-12653 | 1870-1876 | Westport Poor Law Union Minute Books, April 1870-Apr... | Westport Poor Law Union |
| 12266 | National Library of Ireland | Mss12238-12256 | 1870-1880 | Ballina Poor Law Union Minute Books, January 1870-Ja... | Ballina Poor Law Union |
| 12273 | National Library of Ireland | Mss12626-12642 | 1860-1870 | Westport Poor Law Union Minute Books, April 1860-Apr... | Westport Poor Law Union |
| 11564 | National Photographic Archive | StereoP/2852 | c1860-1870 | Photographs of Bridget Sweeny at the Gap of Dunloe, ... | Stereo Collection |
| 11565 | National Photographic Archive | StereoP/1658 | 1860-1870 | Women at St Senan's well, Kilkee, County Clare. Wome... | Stereo Collection |
| 4820 | Newtown School, Waterford | Archive Room Safe | 1855-1870 | Joint Committee Minutes, 1855-1870. | |
| 21393 | Our Lady's Hospital, Cork | | 1870 | Centre building plan showing female and male admissi... | |
| 21412 | Our Lady's Hospital, Cork | | 1870 | Newspapercuttings Book, c.1870s. | |
| 1814 | Public Record Office of Northern Ireland | D/2009/2 | c.1870-c.1880 | 49 manuscript notebooks mainly concerning the histor... | |
| 7172 | Public Record Office of Northern Ireland | D/3009 | c.1870 | Photograph album of the Sproule family, Carrickfergu... | |
| 6648 | Public Record Office of Northern Ireland | D/1819 | c1870-1885 | A detailed calendar of this collection of c24 docum... | |
| 6774 | Public Record Office of Northern Ireland | D/2194/ | c.1870-1923 | The papers of Young and Mackenzie Chartered Architec... | |
| 6796 | Public Record Office of Northern Ireland | D/2298 | 1870-c.1950 | 306 boxes and 54 volumes of business papers of Wilso... | |
| 6808 | Public Record Office of Northern Ireland | D/2353 | 1790-1906
1870-1911 | Genealogical table on the Murphy family, c.1790-1906... | |
| 7030 | Public Record Office of Northern Ireland | D/2594 | c.1824-c.1870 | This collection of c.200 documents relates to Revd. ... | |
| 7091 | Public Record Office of Northern Ireland | D/2757 | c.1870-1908 | Papers relating to the estate of Isabella Spencer in... | |
| 7110 | Public Record Office of Northern Ireland | D/2802 | 1870-c1940 | This collection of c325 Mayne Reid papers includes: ... | |
| 7210 | Public Record Office of Northern Ireland | D/3113 | c.1870-1880 | A detailed calendar is available. This collection of... | |
| 7542 | Public Record Office of Northern Ireland | D/885/8-9; D/885/13 | 1870-1871 | Emigrant letters from Mary Hanlon in New York, and l... | Hanlon Papers |
| 7737 | Public Record Office of Northern Ireland | MIC/1/109 | 1870-1902 | Culfeightrin Church of Ireland, County Antrim: Micro... | Church of Ireland Records |
| 7912 | Public Record Office of Northern Ireland | T/1197/1 | 1761-1870 | Copy of a short pedigree of James Macdonald, Methodi... | |
| 7944 | Public Record Office of Northern Ireland | T/1284/1 | 1715-1870 | Genealogical notes relating to the Gailey family, Sc... | |
| 8001 | Public Record Office of Northern Ireland | T/1461/ | 1625-1870 | Transcripts of c.50 documents relating to the Conven... | |
| 8078 | Public Record Office of Northern Ireland | T/1685/1-3 | 1014-1870 | Family tree of the Irvine family, Killadeas, County ... | |
| 8118 | Public Record Office of Northern Ireland | T/1848/2-10 | 1870-1914 | Copies of diary, 1879-1889 and correspondence of Sar... | |
| 1437 | Religious Society of Friends in Ireland Historical Library | Portfolio 36E | 1870 | Clibborn Letters: Letters of Edie Clibborn concernin... | Handlists/Portfolio |
| 870 | Religious Society of Friends in Ireland Historical Library | Albums 1-40 | 1870-1871
1874-1914
1893-1900
1946-1948
1909
1912
1925 | Albums 2-3 Commissioners of the Friends War Victims... | Photographic Collections |
| 3566 | Religious Society of Friends in Ireland Historical Library | LGM/4/2/Reel 29A | 1870-1900 | Ministers and Elders' Minutes, Lurgan Monthly Meetin... | |
| 21502 | Religious Society of Friends, Ulster Quarterly Meeting Archive | | 1870-1905 | Quarterly Meeting Minutes, 1870-1905. | |
| 2166 | Representative Church Body Library | Ms373 | c.1870 | Plates from George Petrie's Christian Inscriptio... | Margaret Stokes |
| 23690 | Representative Church Body Library | | 1870-1936 | Box 13 Casebooks, 1886-1907; Registers, Bird's Nest,... | Mrs Smyly's Homes |
| 22093 | Representative Church Body Library | B10 | 1864
1865
1866
1870 | Diocese of Cork and Ross Visitation Books, Vicar Gen... | St Fin Barre's Cathedral Cork Archive |
| 22095 | Representative Church Body Library | B10 | 1867
1868
1869
1870 | Rural Deans' Returns for the Diocese of Cloyne:1... | St Fin Barre's Cathedral Cork Archive |
| 22096 | Representative Church Body Library | B10 | 1867
1868
1869
1870 | Rural Deans' Returns for the diocese of Cork and... | St Fin Barre's Cathedral Cork Archive |
| 23680 | Representative Church Body Library | | 1870-1898
1911-1920 | Box 3 Dublin Mission Homes and Schools, 1911-1920, E... | Mrs Smyly's Homes |
| 25010 | Royal Irish Academy | 12/K/38 | 1860
1870 | Letters to Mrs Walsh from Alex Gunning [?], 24 Septe... | J.C. Walker Papers |
| 25014 | Royal Irish Academy | 12/K/38 | 1870 | Letter from Miss Fitzgerald to Mrs Walshe, no date a... | J.C. Walker Papers |
| 22444 | Royal Victoria Hospital, Belfast | | 1863-1870
1871-1878 | Honorary Secretary's Minutes:1863-18701871-1878T... | |
| 24312 | Tipperary County Archives | | 1870-1945 | Estate Rental, 1870-1945. | Clonmel Corporation |
| 19824 | Tipperary Studies | | 1841-1870 | Thurles Fever Hospital, Account Book:1841-1870 ... | Thurles Poor Law Union |
| 6397 | Trinity College Dublin, Manuscripts and Archives Department | TCDMss10247/1/930-978 | 1870-1917
1862 | Letters of Clara Frances Wynne [Aunt Gigi], daugher ... | Wynne Family Papers |
| 6886 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs7341/1-23 | 1870-1921 | Family correspondence of Gertrude Caroline Lucy Clem... | Clements family |
| 10332 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs4485 | 1860-1870 | Commonplace Book containing prose and verse in Engli... | O'Sullivan/Solomons Collection |
| 11240 | Trinity College Dublin, Manuscripts and Archives Department | P47/4/1-80 | 1870-1898 | Estate correspondence and papers including proceedin... | Courtown Papers |
| 3635 | UCC Special Collections & Archives | U34 | 1870 | Letter from Mrs May Dykes, Tower Leith, Scotland, to... | |
| 6876 | UCC Special Collections & Archives | BL/EP/G/836-836a | 1870-1893 | Letter to Esther Chichester, from her aunt, Jane E C... | Grehan Estate Collection |
| 18461 | UCC Special Collections & Archives | BL/PP/AMM | 1870-1912 | The Countess Alice Murphy Collection has been fully ... | Countess Alice Murphy Collection |
| 18468 | UCC Special Collections & Archives | BL/PP/SB | 1870-1898 | 27 items. These papers consist of twenty-four letter... | The Sullivan Barry Collection |
| 1872 | UCD Archives | S6/14 (1-125) | 1795-c1870 | This collection contains family papers of the Uptons... | Upton Papers |
| 24120 | Union Theological College | | 1870 | Charles Bell Taylor, 'The Contagious Diseases Acts (... | Union Theological College Pamphlet Collection |
| 24121 | Union Theological College | | 1870 | A Lloyd, 'Mary Clarkson: or the Kirkstall Abbey Murd... | Union Theological College Pamphlet Collection |
| 18400 | University of Galway Archives | LE16/2 | 1777-1870 | A collection of sixty-five letters addressed to the ... | Clancarty Papers |
| 9918 | Waterford County Archives | BG/Dungn | 1849-1870 | Dungarvan Poor Law Union, Rough Minute Books recordi... | Dungarvan Poor Law Union |
| 19308 | Westmeath County Archives Department | | 1870 | 108 James Murtagh and Anthony Dunne to Mrs Mary Col... | Howard Bury Papers |