| Chief of the Comeraghs : a John O'Mahony anthology | | Monograph or Collective Volume | The author | 1957 |
| Competing for the soul of Irish America : the Catholic Church and the Fenian Brotherhood of New York City | Lynch, Timothy G. | Article in Journal | | 2004 |
| Fíníní Mheiriceá agus an Ghaeilge | Uí Fhlannagáin, Fionnuala | Monograph or Collective Volume | Coiscéim | 2008 |
| John O'Mahony | Ryan, Desmond | Article in Book | | 1968 |
| John O'Mahony : revolutionary and scholar (1815-1877) | Sayers, Brian | Thesis | | 2005 |
| John O'Mahony, 1815-1877 | Ó Cathaoir, Brendan | Article in Journal | | 1977 |
| John O'Mahony, moulder of the Irish-American dimension | Ó Cathaoir, Brendan | Article in Journal | | 1973 |
| Outbreak - September 1849 | Sayers, Brian J. | Article in Journal | | 2007 |
| The insurrection of 1848 | Sayers, Brian J. | Article in Journal | | 2006 |
| The vision and sacrifice of John O'Mahony | Ó Mathúna, Diarmuid | Article in Journal | | 1978 |