| 14317 | Alexandra College | | 1890-1899
1904 | 1 book, Margaret Stokes Memorial Accounts, 1904, wit... | |
| 16378 | Armagh Diocesan Archive (RC) | | 1904 | Material relating to the Religious, includes:Sisters... | Cardinal Logue Archive |
| 16447 | Armagh Diocesan Archive (RC) | | 1904 | There is a detailed calendar of Letters of His Emine... | |
| 14598 | Belfast Central Library | ST24 | 1856
1859
1903 | Manuscript letter from Walter Strickland to J.F. Big... | Francis Joseph Bigger Archive |
| 14625 | Belfast Central Library | | 1903
1943 | Archive box 'J.S. Crone, Miscellaneous Pamphlets... | |
| 13289 | Cork City and County Archives | U315 | 1904 | Letter from Padraic Mac Piarais, An Claidheamh Solai... | |
| 23151 | Fermanagh County Museum, Enniskillen Castle | FCM-1993-072 | 1904 | A cloth pattern for the yoke of a dress designed by ... | Eleanor Hassard Papers |
| 23152 | Fermanagh County Museum, Enniskillen Castle | FCM-1995-120 | 1904 | A receipt from the Irish Lace Depot Limited, Dublin,... | Eleanor Hassard Papers |
| 19 | Irish Dominican Congregation Archives | A36 | 1904 | Letter dated 1904 from S. Benedict OSB, Ypres, regar... | Dominican Archives, Cabra |
| 43 | Irish Dominican Congregation Archives | F2 | 1903 | Decree of Pope Pius X, 1903. | Dominican Archives, Cabra |
| 22138 | Irish Jesuit Archives | J27/ | 1903 | 49 A file of letters from Susan Gavan Duffy (daughte... | Papers of Fr Matthew Russell, SJ (1834 - 1912) |
| 22165 | Irish Jesuit Archives | J27/ | 1903 | 137 30 October 1903. Letter from Honor Walsh, 440 Qu... | Papers of Fr Matthew Russell, SJ (1834 - 1912) |
| 22255 | Irish Jesuit Archives | J27/ | 1903 | 6 A file containing letters from Mary H. Allies, 3 L... | Papers of Fr Matthew Russell, SJ (1834 - 1912) |
| 22257 | Irish Jesuit Archives | J27/ | 1904 | 8 12 January 1904-26 February [1904]. A file of let... | Papers of Fr Matthew Russell, SJ (1834 - 1912) |
| 13288 | Kilmainham Gaol Museum | 10LG-1C35-8 | 1904 | 294 committal orders from the Dublin Metropolitan Po... | Home Rule |
| 22294 | Leitrim Local Studies Department | | 1903-1904
1914-1921
1896 | Unidentified Letter Books:18961903-19041914-1921 | Carrick-on-Shannon Rural District Council |
| 12662 | Limerick Museum | AQNO (1986.022) | 1904 | Postcard, black and white, 'Jubilee Shrine of Mary I... | |
| 13286 | Limerick Museum | AQNO (1987.63) | 1903 | Book, 'The Limerick-Huntingdon Ferrars', private pri... | |
| 14509 | Mayo Local History Department | | 1903-1904
1912-1913
1916-1920
1924-1925 | Minute Books:13 June 1903-25 July 190427 May 1912-20... | Ballinrobe Rural District Council |
| 20149 | Meath Local Studies and Family History Department | Box C/ | 1904 | 7 Receipt for insurance Kilshine Church 1904. | Mountainstown Documents |
| 20156 | Meath Local Studies and Family History Department | Box C/ | 1904 | 14 Bank of Ireland receipt,1904. | Mountainstown Documents |
| 20160 | Meath Local Studies and Family History Department | Box C/ | 1903 | 21 Farm receipts, 1903. | Mountainstown Documents |
| 20164 | Meath Local Studies and Family History Department | Box C/ | 1904 | 22 Lease of land to Kenny, Knightstown, 1904 (Hill o... | Mountainstown Documents |
| 20166 | Meath Local Studies and Family History Department | Box C/ | 1904 | 23 Income tax receipt, 1904. | Mountainstown Documents |
| 20167 | Meath Local Studies and Family History Department | Box C/ | 1904 | 24 Lease of land by Philip McEntee from J.E. Pollock... | Mountainstown Documents |
| 20170 | Meath Local Studies and Family History Department | Box C/ | 1904 | 27 Receipt and statement from J. Sheridan, Navan, 19... | Mountainstown Documents |
| 20172 | Meath Local Studies and Family History Department | Box C/ | 1904 | 29 Lease of land to J. McKeever, 1904. | Mountainstown Documents |
| 20178 | Meath Local Studies and Family History Department | Box C/ | 1903-1904 | 35 Letters claiming compensation for fowl killed by ... | Mountainstown Documents |
| 20179 | Meath Local Studies and Family History Department | Box C/ | 1904 | 36 List of members and statement of Meath Hunt rent ... | Mountainstown Documents |
| 20299 | Meath Local Studies and Family History Department | Box A/ | 1903-1904 | 4 Account for keeping filly, 1903-1904. | Mountainstown Documents |
| 20304 | Meath Local Studies and Family History Department | Box A/ | 1904 | 9 Letter regarding E. Guardian from A Carolan, Britt... | Mountainstown Documents |
| 20308 | Meath Local Studies and Family History Department | Box A/ | 1904 | 13 Receipt from Representative Church Body, 1904. | Mountainstown Documents |
| 20616 | Meath Local Studies and Family History Department | Box E/ | 1904 | 4 Receipt from Church Representative Body 1904. | Mountainstown Documents |
| 21308 | Meath Local Studies and Family History Department | Box J/ | 1904 | 7 Receipt Book, 1904. | Mountainstown Documents |
| 730 | National Archives of Ireland | BG/79/DB1 | 1903 | Weekly returns of Inmates in outside workhouses: Apr... | South Dublin Poor Law Union and Rural District Council |
| 795 | National Archives of Ireland | 999/726 | 1903 | 1903, Material relating to Hatty Urquhart's stay in ... | |
| 8845 | National Archives of Ireland | IB/3/15 | 1903 | Wills and other Testamentary Records: District Regis... | |
| 15424 | National Archives of Ireland | 99/56/10/47/1
99/56/10 | 1903
1919 | Papers relating to King's County.
Deed of partners... | Family and estate records. 1611-1948 |
| 15425 | National Archives of Ireland | 99/56/10/48/1 | 1904 | Papers relating to King's County. Grant for 99 years... | Family and estate records. 1611-1948 |
| 15426 | National Archives of Ireland | 99/56/10/49/1 | 1904 | Papers relating to King's County. Settlement on the ... | Family and estate records. 1611-1948 |
| 15444 | National Archives of Ireland | 999/15/1 | 1903 | Official copy grant of administration intestate of t... | Small Private Accessions |
| 15546 | National Archives of Ireland | 999/159 | 1904 | Letters of administration of the estate of Mary Smit... | Small Private Accessions |
| 1920 | National Library of Ireland | Ms4211 | 1903 | An anonymous play entitled 'The Causeway' by a woman... | |
| 2638 | National Library of Ireland | Ms8611 | 1908-1910
1904 | A large volume of letters, some in Irish, to Mrs Mar... | Mary Hutton Papers |
| 2687 | National Library of Ireland | Ms13071 | 1904 | Letters to Sir Hugh Lane and other papers, early 20t... | |
| 2814 | National Library of Ireland | Ms24096 | 1904 | Letter from Ellen A Ford of The Irish World, New Yor... | Sheehy-Skeffington Papers |
| 3719 | National Library of Ireland | Ms13097 | 1904
1906
1907 | Photostat copies of six letters by J M Synge to Moll... | |
| 3738 | National Library of Ireland | Ms13453 | 1904 | Twenty letters to J F X O'Brien relating to alleged ... | J F X O'Brien Papers |
| 9362 | National Library of Ireland | Ms 23955-23956 | Feb. 1904 | Proposals for sale of holdings to tenants [judicial ... | Ormonde Papers |
| 9365 | National Library of Ireland | Mss23961-23964 | 1904 | Proposals for the sale of holdings to tenants, judic... | Ormonde Papers |
| 9367 | National Library of Ireland | Mss23969-23974 | 1904 | Copies of proposals for the sale of holdings to tena... | Ormonde Papers |
| 9372 | National Library of Ireland | Mss23995-23996 | 1904 | Copies of proposals for sale to tenants, non-judicia... | Ormonde Papers |
| 9523 | National Library of Ireland | Ms29812 | 1904 | Copy letter from John MacBride to his solicitor, R. ... | Frederick J. Allan Papers |
| 9574 | National Library of Ireland | Ms29770(171) | 1904 | Probate will of Lady Frances M Doyne, 12 January 190... | Doyne Papers |
| 9739 | National Library of Ireland | Ms18312 | 1903 | Four letters from Annie [Horniman], March-October 19... | |
| 4467 | National Maternity Hospital | NMH/59 | 1903 | Hospital Charter, 14 May 1903. Patent granting Chart... | |
| 20032 | Newtown School, Waterford | F1-16 | 1904 | F/1 Accounts of New Gates, 1904 | Quaker Papers |
| 21398 | Our Lady's Hospital, Cork | | 1903 | Photograph of the Cork Asylum Staff Orchestra, 1903. | |
| 7893 | Public Record Office of Northern Ireland | T/1140/1-2 | 1903 | Copies of the amended and abbreviated programmes of ... | |
| 7070 | Public Record Office of Northern Ireland | D/2700/2 | 1903 | A letter from John Gribben, Chicago, United States, ... | |
| 7410 | Public Record Office of Northern Ireland | D/3960 | 1903 | Album of photographs and press cuttings commemoratin... | |
| 7991 | Public Record Office of Northern Ireland | T/144/1 | 1903 | Copy of chancery scheme relating to Jane Maria Gordo... | |
| 8285 | Public Record Office of Northern Ireland | T/2287/1-2 | 1600-1900
1903 | Genealogy and genealogical notes on the Richardson f... | |
| 1224 | Religious Society of Friends in Ireland Historical Library | P426 | 1903 | Woodbrook Summer School, 1903. | Photographic Collections |
| 5194 | RTÉ Stills Library | 0015/016 | 1904 | Major John MacBride, Maud Gonne and son Sean, 1 Janu... | Illustration Library |
| 22691 | South Eastern Education and Library Board Local History Collection | | 1904 | 2 bound volumes of postcard albums which include sev... | Local Studies Collection |
| 22719 | South Eastern Education and Library Board Local History Collection | | 1903 | Lists of 'deserving poor persons' who received money... | Local Studies Collection |
| 6402 | Trinity College Dublin, Manuscripts and Archives Department | TCDMss10247/1/985-990 | 1888
1903 | Letters of [?Edith] C[lara] Wynne, daughter of Revd.... | Wynne Family Papers |
| 6469 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs7673 | 1904 | Draft of a letter from Violet Martin and E Oe Somerv... | Somerville and Ross Papers (TCD) |
| 10173 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs7890/5 | 1904 | Childers Photograph Collection, photographs of Mary ... | Erskine Childers Papers |
| 10249 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs9921 | 1904 | Copy of The One and the Many by Eva Gore-Booth,... | |
| 10314 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs4505 | 1903 | Commonplace Book of Estella Solomons containing pros... | O'Sullivan/Solomons Collection |
| 10447 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs6720 | 1903-1904 | Personal and General Accounts of Elizabeth Dillon, 1... | Dillon Papers |
| 10576 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs8265/182 | 1904 | Mary Hayden to P.H. Pearse, commenting on Irish emig... | Pearse Family |
| 10596 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs8265/312 | 1904 | C Maire Ni Dubhghaill (sic), Pembroke Technical Scho... | Pearse Family |
| 11272 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs10247/1/1226 | 1903 | Letter from Emily [?Falkiner Goold] Wynne, married H... | Wynne Family Papers |
| 11949 | Trinity College Dublin, Manuscripts and Archives Department | TCDMs4630-4669 | 1904
1905
1909
1910
1911
1915
1916
1918
1919
1920
| Correspondence of Seamus O'Sullivan and Estella Fran... | O'Sullivan/Solomons Collection |
| 11962 | Trinity College Dublin, Manuscripts and Archives Department | TCDMss4047-4173 | 1903
1916 | Music manuscripts of Miss Selina Boyle, these includ... | Ina Boyle Papers |
| 18761 | Trinity College Dublin, Manuscripts and Archives Department | TCD MS 11505 | 1888
1904
1922-1940 | Correspondence between Elizabeth Yeats and Cecil Har... | Cuala Press correspondence with C. Harmsworth |
| 3775 | UCD Special Collections | CUR/L/8 | 1904 | Colum, Padraic, 'A little grey house in the bogl... | Curran Collection |
| 5351 | UCD Special Collections | Box 6 | 1904 | Gaelic 1904: Envelope 4 21 Letter from Mairéa... | Henry Morris Correspondence |
| 18412 | University of Galway Archives | LE33 | 1903 | Notice of auction of the household furniture and a s... | Corbishley Family of St. John’s Athenry |
| 18428 | University of Galway Archives | P61 | 1904 | File of press clippings relating to the Röntgen Ray... | Röntgen Ray Case |
| 4553 | Waterford City Archives | | 1903 | Annual Report of the County and City Infirmary, 1903... | Waterford City and County Infirmary |