| An introduction to the heraldry of county Kerry | Gillespie, Fergus | Article in Journal | | 2003 |
| Ancient Irish genealogies | Gillespie, Fergus | Article in Journal | | 1997 |
| Irish genealogy and pseudo-genealogy | Gillespie, Fergus | Article in Book | | 1993 |
| Mac Lochlainn, McLaughlin, McLoughlin | Gillespie, Fergus | Article in Journal | | 2011 |
| Míl Espáine and links between Ireland and Spain | Gillespie, Fergus | Article in Book | | 2007 |
| Ó Clérigh and O'Cleary | Gillespie, Fergus | Article in Journal | | 2011 |
| The Ó Máille memorial plaque and its heraldic achievement | Gillespie, Fergus | Article in Book | | 2005 |
| Uí Chléirigh Thír Chonaill : the O Clery family of Donegal | Gillespie, Fergus | Article in Book | | 1996 |