| 'Come, pack up your store ...' : emigration from County Longford in the nineteenth and twentieth centuries | O'Hara, Aidan | Article in Book | Geography Publications | 2010 |
| 'The only lever...?', The Catholic priest in Irish politics, 1823-29 | O'Ferrall, Fergus | Article in Journal | | 1981 |
| 1800-1870 | O'Ferrall, Fergus | Article in Book | | 2005 |
| Athlone, Longford and Mullingar | O'Ferrall, Fergus | Article in Book | | 2013 |
| Catholic emancipation : Daniel O'Connell and the birth of Irish democracy 1820-30 | O'Ferrall, Fergus | Monograph or Collective Volume | Gill & Macmillan | 1985 |
| County Longford explored : Irish history in the hidden heartland | O'Ferrall, Fergus | Monograph or Collective Volume | Geography Publications | 2025 |
| County Longford history, 1967-1997 | O'Ferrall, Fergus | Article in Journal | | 1997 |
| Daniel O'Connell | O'Ferrall, Fergus | Monograph or Collective Volume | Gill & Macmillan | 1981 |
| Daniel O'Connell and Henry Cooke : the conflict of civil and religious liberty in modern Ireland | O'Ferrall, Fergus | Article in Journal | | 1986 |
| Daniel O'Connell and Iveragh | O'Ferrall, Fergus
| Article in Book | | 2009 |
| Daniel O'Connell, the 'Liberator', 1775-1847 : changing images | O'Ferrall, Fergus | Article in Journal | | 1994 |
| John Ferrall : Master of Sligo Workhouse, 1852-66 | O'Ferrall, Fergus | Monograph or Collective Volume | Four Courts Press | 2019 |
| Liberty and Catholic politics, 1790-1990 | O'Ferrall, Fergus | Article in Book | | 1991 |
| Liberty and Catholic politics, 1790-1990 | O'Ferrall, Fergus | Monograph or Collective Volume | Freehold Press | 1990 |
| Longford | Gearty, SarahMorris, MartinO'Ferrall, Fergus | Monograph or Collective Volume | Royal Irish Academy | 2010 |
| Longford history and society : interdisciplinary essays on the history of an Irish county | | Monograph or Collective Volume | Geography Publications | 2010 |
| Maria Edgeworth and the local scene : a review | O'Ferrall, Fergus | Article in Journal | | 1980 |
| Methodists in Ireland : political identities and changing contexts | O'Ferrall, Fergus | Article in Journal | | 2017 |
| Reflections on Oliver Goldsmith and politics - then and now | O'Ferrall, Fergus | Article in Journal | | 2011 |
| Rev. George Brittaine (1788-1848) Rector of Kilcommock and novelist | O'Ferrall, Fergus | Article in Journal | | 2007 |
| The 'tithe war' in Co. Longford in the 1830s | O'Ferrall, Fergus | Article in Journal | | 2013 |
| The Adelaide Hospital, Dublin, 1839-2008 | O'Ferrall, Fergus | Monograph or Collective Volume | Adelaide Hospital Society | 2008 |
| The Ballinamuck 'Land war' 1835-39 | O'Ferrall, Fergus | Article in Journal | | 1983 |
| The Church of Ireland : a critical bibliography, 1800-1870 | O'Ferrall, Fergus | Article in Journal | | 1993 |
| The consolidation of the O'Connellite democratic revolution : County Longford politics, 1840-1850 | O'Ferrall, Fergus | Article in Book | | 2010 |
| The downfall of the O'Ferralls of Mornine, c. 1680-c. 1780 | O'Ferrall, Fergus | Article in Book | | 2010 |
| The emergence of the political community in Longford, 1824-1829 | O'Ferrall, Fergus | Article in Book | | 1991 |
| The erosion of citizenship in the Irish Republic: the case of healthcare reform | O'Ferrall, Fergus | Article in Journal | | 2009 |
| The formation of The Adelaide and Meath Hospital Dublin, incorporating the National Children's Hospital | O'Ferrall, Fergus | Article in Book | | 2006 |
| The Lefroy family and the emergence of the Tory Party in County Longford, 1828-'31 | O'Ferrall, Fergus | Article in Journal | | 2006 |
| The mart of ideas : Seán Ó Faoláin 1900-1991 | O'Ferrall, Fergus | Article in Book | | 1995 |
| The only lever ... ? : the Catholic priest in Irish politics 1823-29 | O'Ferrall, Fergus | Article in Journal | | 1981 |
| The rise of the Catholic middle class : O'Connellites in County Longford, 1820-50 | O'Ferrall, Fergus | Article in Book | | 2010 |
| The struggle for Catholic emancipation in county Longford 1824-9 | O'Ferrall, Fergus | Article in Journal | | 1978 |