| A history of the Black Death in Ireland | Kelly, Mary | Monograph or Collective Volume | Tempus | 2001 |
| A tribute to the memory of Sr. M. Joseph Ruby | Kelly, Mary | Article in Journal | | 2000 |
| A ‘sentinel(s) of our liberties’ : Archbishop John Hughes and
Irish-American intellectual negotiation in the Civil War era | Kelly, Mary C. | Article in Journal | | 2010 |
| A ‘sentinel(s) of our liberties’ : archbishop John Hughes and Irish-American intellectual negotiation in the Civil War era | Kelly, Mary C. | Article in Journal | | 2010 |
| Aspects of the economy and society in pre-Famine Mayo | Kelly, Mary Catherine | Thesis | | 1988 |
| Coarse cloth and clerical tailoring : negotiating Boston-Irish cultural imperatives in the Famine era | Kelly, Mary C. | Article in Journal | | 2015 |
| Coarse cloth and clerical tailoring : negotiating Boston-Irish cultural imperatives in the Famine era | Kelly, Mary C. | Article in Journal | | 2015 |
| Culture and ideology in Ireland | | Monograph or Collective Volume | [s.n.] | 1984 |
| Culture and ideology in Ireland | | Monograph or Collective Volume | Officina Typographica, Galway University Press | 1984 |
| Deane and Scott: written in stone, but by whom? | Byrne, John G.Kelly, Mary | Article in Journal | | 2012 |
| Down memory lane : the tea travellers | Kelly, Mary | Article in Journal | | 1995 |
| Glendalough : city of God | | Monograph or Collective Volume | Four Courts | 2011 |
| Home away from home : the Yanks in Ireland | Kelly, Mary Pat | Monograph or Collective Volume | Appletree Press | 1994 |
| How remembering the Famine shaped Irish-American identity | Kelly, Mary C. | Article in Book | | 2024 |
| In the Crimea : memories of a Carlow sister of mercy | Kelly, Mary Teresa | Article in Journal | | 1964 |
| Ireland's Great Famine in Irish-American history : enshrining a fateful memory | Kelly, Mary C. | Monograph or Collective Volume | Rowman & Littlefield | 2014 |
| John O'Donnell M.P. (1886-1920) | Kelly, Mary | Article in Journal | | 2001 |
| Mapping population change in Ireland, 1841-1851 : quantitative analysis using historical GIS | Charlton, MartinFotheringham, A. Stewart,Kelly, Mary, | Article in Book | | 2012 |
| Media audiences in Ireland : power and cultural identity | | Monograph or Collective Volume | University College Dublin Press | 1997 |
| Music and the stars : mathematics in medieval Ireland | | Monograph or Collective Volume | Four Courts Press | 2013 |
| Navigating historical crosscurrents in the Irish Atlantic : essays for Catherine B. Shannon | | Monograph or Collective Volume | Cork University Press | 2022 |
| Richard King - distinguished Mayo artist | Kelly, Mary | Article in Journal | | 2002 |
| The development of midwifery at the Rotunda, 1745-1995 : a tribute to Dr W.R.F. Collis and Sister Maudie Moran | Kelly, Mary | Article in Book | | 1995 |
| The Famine in County Roscommon | Kelly, Mary | Article in Book | | 2012 |
| The Famine, Irish-American transition, and a century of intellectual and cultural history | Kelly, Mary C. | Article in Book | | 2010 |
| The great famine in County Roscommon | Kelly, Mary | Article in Book | | 2018 |
| The hand of friendship : Protestants, Irish Americans and 1916-era nationalism | Kelly, Mary C. | Article in Book | | 2016 |
| The Kearns - Ferris family - some childhood memories | Kelly, Mary | Article in Journal | | 1999 |
| The Shamrock and the Lily : the New York Irish and the creation of a transatlantic identity, 1845-1921 | Kelly, Mary C. | Monograph or Collective Volume | Peter Lang | 2005 |
| Twelfth-century ways of learning : from Worcester or Cologne to Glendalough | Kelly, Mary | Article in Journal | | 2011 |
| When things were ‘closing-in’ and ‘rolling up’ : the imaginative geography of Elizabeth Bowen’s Anglo-Irish war novel The Last September | Kelly, Mary | Article in Journal | | 2012 |