| A question of survival : the O'Farrells and Longford in the seventeenth century | Gillespie, Raymond | Article in Book | | 1991 |
| Farrell clan : a brief history, | Farrell, Hugh | Monograph or Collective Volume | [s.n.] | 1993 |
| Farrells of Rossnowlagh | Hanna, Sam | Article in Journal | | 2014 |
| Longford Musketeers : the Farrells of Annaly and the sieges of St. Ghislain and Tangier | Collins, Stephen | Article in Journal | | 2003 |
| The Farrell clan in Europe | Collins, Stephen | Monograph or Collective Volume | Farrell Clan Committee | 1997 |
| The Little Mill - a transition year project | Donohue, Kieran | Article in Journal | | 2014 |
| The Ó Fearghail lordship of Anghaile | Veach, Freya Verstraten | Article in Book | | 2010 |
| The O'Farralls of Mornin castle | Lennon, Jimmy | Monograph or Collective Volume | Farrell Clan Committee | 1997 |
| The O'Farrells of Annaly : the transformation of a late medieval lordship in early modern Ireland | Farrell, Neil | Thesis | | 2008 |
| The Uí Fhearghail and the lordship of Anghaile, c. 1400-1540 | Farrell, Neil | Article in Book | | 2010 |