| A few outstanding figures of Irish ancestry at the bench and bar of New York | McManus, Terence J. | Article in Journal | | 1924 |
| Ambrose O'Higgins : An Enquiry into his Origins and Ancestry | de Breffny, Brian | Article in Journal | | 1970 |
| An early English perfumer: William Dungan of St. Martin-in-the-Fields, C. 1600-1636. His ancestry, life and family | Dungan, Thomas P. | Monograph or Collective Volume | Otter Bay Books | 2017 |
| An introduction to Irish reaearch : Irish ancestry : a beginner's guide | Davis, Bill | Monograph or Collective Volume | Federation of Family History Societies | 1994 |
| An investigation into the Connacht ancestry of Mary Ann Costello, mother of George Canning | De Breffny, Brian | Article in Journal | | 1980 |
| An underground gentry? Catholic middlemen in eighteenth-century Ireland | Whelan, Kevin | Article in Journal | | 1995 |
| Ancestry of an historian | Walsh, Paul, Revd, 1885-1941 | Article in Journal | | 1940 |
| Ancestry of the actor, Spranger Barry (b. 1717) | Montague-Smith, P. W. | Article in Journal | | 1948 |
| Bleak House : the Pollexfen ancestry of the Yeats family | Lewis, Gifford | Article in Journal | | 2000 |
| Burke's introduction to Irish ancestry | | Monograph or Collective Volume | | 1976 |
| Colonel Robert Phaire, 'regicide', his ancestry, history and descendants | Welply, W. H. | Article in Journal | | 1923 |
| Contributions to the history of the Irish house : A possible ancestry of the bed-outshot (cuílteach) | Lucas, A. T. | Article in Journal | | 1970 |
| DNA analysis: Researching Donegal ancestry | Gleeson, MauriceHanna, Sam | Article in Journal | | 2020 |
| Facts and fabrications : the earls and their Ulster ancestry | Lacey, Brian | Article in Book | | 2010 |
| Female ancestry and mother’s kin in classical Irish poetry | McManus, Damian | Article in Book | | 2015 |
| From Moneygall to the White House, Eneclann's Fiona Fitzsimons traces President Barack Obama's Irish ancestry back to a small village in Co. Offaly | Fitzsimons, Fiona | Article in Journal | | 2011 |
| George Frederick Beltz, Lancaster Herald, and his quest in Ireland in 1802 for the ancestry of Sir Richard Joseph Sullivan | Lyne, Gerard J. | Article in Journal | | 1984 |
| Goldsmith's ancestry : fact and tradition | Murray, P. | Article in Book | | 1980 |
| Have you any Mermaid ancestry | Higgins, Jim | Article in Journal | | 1996 |
| Henry (William) Oliver 1807-1888 : ancestry and descendents | Rea, Henry Oliver | Monograph or Collective Volume | Tyrone Printing Co. | 1959 |
| Irish faces on the Plains of Abraham: West's painting; the letters home of Lieutenant Henry Browne; and the ancestry of Major-General James Wolfe | Ferguson, Kenneth | Article in Journal | | 2015 |
| Irish records : sources for family and local history | Ryan, James G. | Monograph or Collective Volume | Ancestry | 1997 |
| Irish records : sources for family and local history | Ryan, James | Monograph or Collective Volume | Ancestry Publishing|Flyleaf | 1988 |
| Irish roots, Australian rhizomes : ancestry and diasporic cultural identity in the works of Thomas Keneally and Christopher Koch | Habel, Chad | Article in Journal | | 2008 |
| Irish-Scotch ancestry | Neill, Kathleen | Article in Journal | | 1984 |
| My Irish ancestry - a 3 x great granddaughter's view | Kraus, Elizabeth | Article in Journal | | 2007 |
| Our Irish ancestry : American Augustinians, the heirs of Rome and Ireland | Roland, Thomas F. | Article in Book | | 1956 |
| Researching Irish ancestry in Liverpool | McCann, Jo | Article in Journal | | 1996 |
| Revisiting Glubbdubdrib. Paternal ancestry and DNA | Hamilton, David Ian | Article in Journal | | 2014 |
| Senator O'Gorman's ancestry | Fitzpatrick, Benedict | Article in Journal | | 1911 |
| Some Irish seventeenth century houses and their architectural ancestry | Waterman, D. M. | Article in Book | | 1961 |
| Speranza's ancestry : Elgee - the maternal lineage of Oscar Wilde | De Breffny, Brian | Article in Journal | | 1972 |
| T.E. Lawrence's Irish ancestry and relationship to Sir Walter Raleigh | Knight, Ronald D., 1932- | Monograph or Collective Volume | R. D. Knight | 2000 |
| The ancestry of 'Coherent Geometry' in insular designing | Stevick, Robert D. | Article in Journal | | 2004 |
| The ancestry of Edgar Allen Poe | Larmour, David | Article in Journal | | 1986 |
| The Ancestry of John Doe: A Squib | Sayers, William | Article in Journal | | 2011 |
| The ancestry of St Laurence O'Toole | Ryan, John | Article in Journal | | 1955 |
| The ancestry of St. Finnian of Clonard | Byrne, Paul | Article in Journal | | 1984 |
| The ancestry of St. Oliver Plunket : a genealogical puzzle | Barnwell, S. B. | Article in Journal | | 1977 |
| The ancestry of the Wesleys. With special reference to their connection with Ireland | Crook, William | Monograph or Collective Volume | | 1938 |
| The biblical text of the Book of Deer : evidence for the remains of a division system from its manuscript ancestry. APPENDIX: A concordance of the display initials of the Book of Deer with the Ammonian sections / Eusebian canons; | O'Loughlin, Thomas | Article in Book | | 2008 |
| The Brontës : a family history | Cannon, John, 1929- | Monograph or Collective Volume | Sutton | 2007 |
| The Co. Cork ancestry of the Maddens of Travancore, Melbourne, Australia | Macoboy, Stirling | Article in Journal | | 1984 |
| The European ancestry of the United States population, 1790 | Purvis, Thomas L. | Article in Journal | | 1984 |
| The Fat family and the ridge of the cow : the Ulster-Scottish ancestry of Count Dmitri Nikolaevich Tolstoy-Miloslavsky | Carson, Douglas | Article in Journal | | 1990 |
| The international gathering of the clan O'Neill (June 1991) and Hugo O'Neill's ancestry | Anonymous | Article in Journal | | 1989 |
| The invincible Irish : Ronald Wilson Reagan - Irish ancestry and immigration to America | White, Patricia Meade | Monograph or Collective Volume | Portola Press | 1981 |
| The Irish ancestry of Theodore Roosevelt | O'Brien, Michael J. | Article in Journal | | 1918 |
| The Kehoes of Williamstown. A femily's ancestry in the context of local and national historic events | Kehoe, Patrick | Article in Journal | | 2013 |
| The Life of Charles Stewart Parnell, MP., with some account of his ancestry, etc. | Sherlock, Thomas | Monograph or Collective Volume | | 1887 |
| The maternal ancestry of Daniel O'Connell | Collins, J. T. | Article in Journal | | 1949 |
| The paternal ancestry of Oscar Wilde | De Breffney, Brian | Article in Journal | | 1973 |
| The riddle of Goldsmith's ancestry | Murray, Patrick | Article in Journal | | 1974 |
| The road to Haworth : the story of the Brontës' Irish ancestry | Cannon, John, 1929- | Monograph or Collective Volume | Weidenfeld and Nicolson | 1980 |
| The yidiot's guide to Irish Jewish ancestry | Rosenblatt, Stuart | Monograph or Collective Volume | Varsity Press | 2011 |
| This ancestry business - a beginner's guide to genealogy. | Birmingham & Midland Society for Genealogy & Heraldry | Monograph or Collective Volume | | 1979 |
| Tracing your ancestors in Northern Ireland : a guide to ancestry research in the Public Record Office of Northern Ireland | Maxwell, Ian,McGrath, Grace | Monograph or Collective Volume | The Stationery Office | 1997 |
| Ursula's story of her Hiberno-German ancestry | Roche, Richard | Article in Journal | | 2001 |