| "The White God of the Hindus" : John Nicholson as a British and Irish imperial hero | Silvestri, Michael | Article in Book | Irish Academic Press | 2009 |
| 'Almost frantic with joy' : the Nicholson revival and the Belfast troubles, 1922-23 | Wilson, Timothy | Article in Book | Cambridge Scholars | 2010 |
| 12 February 1922: The Nicholson Revival : ‘Divine Dynamite’: Popular Protestantism in Belfast | Holmes, Andrew R. | Article in Book | | 2022 |
| 19 January 1922: Dedication of the John Nicholson Statue, Lisburn - Ireland and Empire | Silvestri, Michael | Article in Book | | 2022 |
| A forgotton Sligo-born patriot | McTernan, John C. | Article in Journal | | 2017 |
| A history of the Church of Ireland in St. Mary Magdalene parish, Belfast | Leathem, William S. | Monograph or Collective Volume | Nicholson & Bass | 1939 |
| A long way from Jerusalem : the Templars and Hospitallers in Ireland, c. 1172-1348 | Nicholson, Helen J., 1960- | Article in Book | | 2015 |
| A select bibliography of the library | Nicholson, CiaranO'Brien, Ann | Article in Book | | 2000 |
| A selection of published illustrations relating to the library : buildings, people, and some artifacts | Nicholson, Ciaran | Article in Book | | 2000 |
| A Sequel to Edward Bruce's Invasion of Ireland | Nicholson, Ranald | Article in Journal | | 1963 |
| All for Jesus : [the life of W.P. Nicholson] | Barnes, Stanley | Monograph or Collective Volume | Ambassador | 1996 |
| An Irish expedition to Scotland in 1335 | Nicholson, R. G. | Article in Journal | | 1963 |
| An Irish Expedition to Scotland in 1335 | Nicholson, Ranald | Article in Journal | | 1963 |
| Annals of the famine in Ireland | Murphy, MaureenNicholson, Asenath, 1792-1855 | Monograph or Collective Volume | Lilliput | 1998 |
| Asenath Nicholson & the famine in Ireland | Murphy, Maureen | Article in Book | | 1997 |
| Asenath Nicholson (1792-1855) : heroine of Ireland's Great Hunger | Murphy, Maureen | Article in Book | | 2021 |
| Asenath Nicholson and school children in Ireland | Murphy, Maureen | Article in Book | | 2016 |
| Asenath Nicholson's Irish journeys | Chadwick, Lorraine | Article in Book | | 2012 |
| Authors and famous residents | Nicholson, Robert | Article in Book | | 1987 |
| British and Irish Visitors to and Residents in Rhodes, 1409–1522 | O'Malley, Gregory | Article in Book | | 2007 |
| Building over the centuries : a history of McLaughlin & Harvey | Watson, Fredrick Gilbert | Monograph or Collective Volume | Nicholson & Bass | 2010 |
| Climbing the Diamond (Connemara) then and now | Gibbons, Michael | Article in Journal | | 2004 |
| Colour at Canterbury: the pigments of Canterbury illuminators from the tenth to the twelfth centuries | Beeby, AndrewGameson, RichardNicholson, Catherine | Article in Book | | 2018 |
| Court houses and market houses of the province of Ulster | Brett, Charles Edward Bainbridge, Sir, 1928-2005 | Monograph or Collective Volume | Ulster Architectural Heritage Society | 1973 |
| Cult of a Dark Hero: Nicholson of Delhi | Flinders, Stuart | Monograph or Collective Volume | I.B.Tauris | 2018 |
| Dividing the wrack on Derryogue shore in the '30s | Nicholson, Sam | Article in Journal | | 1987 |
| Four Irish pedigrees | Gray, Edward Stewart | Article in Journal | | 1946 |
| Henry Nicholson, first lecturer in botany (in Trinity College, Dublin) and the earliest physic garden | Brooks, Eric St. John | Article in Journal | | 1954 |
| History of the Law family Dunboe, Maddybenny and New Brunswick | Nicholson, R.H. | Article in Journal | | 2001 |
| In an Irish house | | Monograph or Collective Volume | Widenfield & Nicholson | 1988 |
| International Mobility versus the Needs of the Realm : The Templars and Hospitallers in the British Isles in the Thirteenth and Fourteenth Centuries | Nicholson, Helen J., 1960- | Article in Book | | 2006 |
| Ireland and India : nationalism, empire and memory | Silvestri, Michael | Monograph or Collective Volume | Palgrave Macmillan | 2009 |
| Ireland and the Scottish wars of independence | Nicholson, R. G. | Article in Journal | | 1962 |
| Ireland's first school of medicine | Bewley, Beulah, Dame | Article in Journal | | 2011 |
| Ireland's welcome to the stranger | Murphy, MaureenNicholson, Asenath, 1792-1855 | Monograph or Collective Volume | Lilliput | 2002 |
| Irish Home Rule in North America | Nicholson, George | Article in Journal | | 2007 |
| Irish priests in the north-east in the eighteenth century | Nicholson, W. J. | Article in Journal | | 1984 |
| Irish priests in the north-east in the nineteenth century | Nicholson, W. J. | Article in Journal | | 1985 |
| James Beck's Australian voyage, 1888 | Nicholson, Dorothea | Article in Journal | | 1988 |
| James Nicholson Richardson, 1846-1921 : an Ulster friend of his time and place | Chapman, W. Ross | Article in Journal | | 1997 |
| Journals and letters : Vol.3, 1910-15, Vol. 4,1916-30 | Esher, Oliver, ViscountEsher, Reginald Baliol Brett (2nd viscount) | Monograph or Collective Volume | Ivor Nicholson | 1938 |
| Kathleen Isabella Metcalfe Mackie | Mackie, PaddyMallie, Eamonn | Monograph or Collective Volume | Nicholson and Bass | 2009 |
| Keltic researches : studies in the history and distribution of the ancient Goidelic language and peoples | Nicholson, E. W. B. | Monograph or Collective Volume | | 1904 |
| Key personalities | Fitzpatrick, Margaret,Hartnett, Eoin,O'Riordan, TomásÓ Corráin, Donnchadh, | Article in Book | | 2011 |
| Lough Mourne | Nicholson, Caroline A. | Article in Journal | | 1992 |
| Major Benjamin Walker Nicholson - veteran of the Battle of Waterloo 1780-1858 | Scudds, Colin | Article in Journal | | 2018 |
| Mountbellow/Moylough and environs : a pictorial memoir | Grattan Bellew, HenryKiely, GeorgeNicholson, ShirleyWalsh, Adrian | Monograph or Collective Volume | Justin Nelson Productions | 2010 |
| Paper making at Ballymagart | Nicholson, Dorothea | Article in Journal | | 1987 |
| Parish of Drumachose: a brief historical sketch : a guide to the church | Knowles, G W. A.Seymour, A. N. | Monograph or Collective Volume | Nicholson and Bass [Printer] | 1969 |
| Relations between houses of the Order of the Temple in Britain and their local communities, as indicated during the trial of the Templars, 1307-12 | Nicholson, Helen J., 1960- | Article in Book | | 2007 |
| Review article. Perspectives on Ireland's past, fiction, facts, interpretations | Clarkson, L. A. (Leslie A.) | Article in Journal | | 2016 |
| Salt mining in the Woodburn Area (part one) | Nicholson, Caroline A. | Article in Journal | | 2001 |
| Serving King and Crusade : the Military Orders in Royal Service in Ireland, 1220-1400 | Nicholson, Helen J., 1960- | Article in Book | | 2003 |
| The Bible in Ireland | Jackson, Robert Wyse | Article in Journal | | 1946 |
| The Duhallow 'torc' | Robson, Frances | Article in Journal | | 2019 |
| The experience in Ontario : rural or urban | Murray, Nicholson | Article in Journal | | 1985 |
| The female gaze : Asenath Nicholson's famine narrative | Kelleher, Margaret | Article in Book | | 1996 |
| The great commons of Carrickfergus | Nicholson, Caroline A. | Article in Journal | | 1986 |
| The great commons. Part two : the sale of the commons | Nicholson, Caroline A. | Article in Journal | | 1987 |
| The Knights Templar on trial : the trial of the Templars in the British Isles, 1308-1311 | Nicholson, Helen J., 1960- | Monograph or Collective Volume | History Press | 2009 |
| The Manning family : to Ireland from Kent? | Nicholson, Lucille | Article in Journal | | 2006 |
| The Military-Religious Orders in Ireland: their patrons and their purpose | Nicholson, Helen J. | Article in Book | | 2022 |
| The Nicholsons ... Quakers, bleachers and soldiers | McElroy, Eric | Article in Journal | | 2001 |
| The nineteen twenties : a general survey and some personal memories | Goldring, Douglas | Monograph or Collective Volume | Nicholson & Watson | 1946 |
| The story of Gracie Blue | McCarthy, Brendan | Article in Journal | | 2013 |
| The story of Woodford Bourne : wine importers, established 1750 | Nicholson, David | Monograph or Collective Volume | W. B. Publications | 2005 |
| The testimony of Brother Henry Danet and the trial of the Templars in Ireland | Nicholson, Helen J., 1960- | Article in Book | | 2007 |
| The trial of the Templars in Ireland | NNicholson, Helen J., 1960- | Article in Book | | 2010 |
| The Wexford rising in 1798 : its causes and course | Dickson, Charles, 1886-1978 | Monograph or Collective Volume | Constable | 1997 |
| To God be the glory : the personal memoirs of Rev. W.P. Nicholson with first-hand news account of the Nicholson era | Heeney, MavisNicholson, William | Monograph or Collective Volume | Ambassador | 2004 |
| Transatlantic revivalism and Ulster identity : the career of W. P. Nicholson | Wells, Ronald A. | Article in Book | | 2001 |
| ‘Lion of the Punjab’ : or ‘Great Imperial psychopath’? | Flinders, Stuart | Article in Journal | | 2019 |
| “Cursed ymagynacion”: Late Medieval London, urban chronicles and the topologies of treason | Nicholson, Roger | Article in Book | | 2017 |