| 1666-1667 hearth money roll of Dunleer ,county Louth | Mac Íomhair, Diarmuid | Article in Journal | | 1969 |
| A Dunleer election of 1715 | Mac Íomhair, Diarmuid | Article in Journal | | 1968 |
| Ardee manor in A.D. 1336 | Mac Íomhair, Diarmuid | Article in Journal | | 1957 |
| Bruce's invasion of Ireland and first campaign in County Louth | Mac Íomhair, Diarmuid | Article in Journal | | 1971 |
| Bruce's invasion of Ireland and first campaign in County Louth | Mac Íomhair, Diarmuid | Article in Journal | | 1972 |
| Caraher of Cardistown family papers | Mac Íomhair, Diarmuid | Article in Journal | | 1968 |
| Clergy and churchwardens of Termonfeckin parish | Mac Íomhair, Diarmuid | Article in Journal | | 1969 |
| Fasti of Saint John's Priory, Ardee | Mac Íomhair, Diarmuid | Article in Journal | | 1973 |
| Fasti of St. John's priory, Ardee | Mac Íomhair, Diarmuid | Article in Journal | | 1973 |
| Fochart | Mac Íomhair, Diarmuid | Article in Journal | | 1974 |
| Folklore of Termonfeckin parish | Mac Íomhair, Diarmuid | Article in Journal | | 1965 |
| More on the family of Hatch of Ardee | Mac Íomhair, Diarmuid | Article in Journal | | 1969 |
| Notes on medieval Killanny | Mac Íomhair, Diarmuid | Article in Journal | | 1963 |
| Post-Reformation pastors of Fochart | Mac Íomhair, Diarmuid | Article in Journal | | 1978 |
| Potters of Ardee | Mac Íomhair, Diarmuid | Article in Journal | | 1974 |
| Primate Mac Maoilíosa and County Louth | Mac Íomhair, Diarmuid | Article in Journal | | 1971 |
| Rígheadh Eadbhuird Brús | Mac Íomhair, Diarmuid | Article in Journal | | 1969 |
| Some Drogheda documents | Mac Íomhair, Diarmuid | Article in Journal | | 1973 |
| Tenants of Omeath 1765 | Mac Íomhair, Diarmuid | Article in Journal | | 1973 |
| The battle of Fochart, 1318 | Mac Íomhair, Diarmuid | Article in Journal | | 1967 |
| The boundaries of Fir Rois | Mac Íomhair, Diarmuid | Article in Journal | | 1961 |
| The Carmelites in Ardee | Mac Íomhair, Diarmuid | Article in Journal | | 1983 |
| The history of Fir Rois | Mac Íomhair, Diarmuid | Article in Journal | | 1964 |
| The house of Louth in the seventeenth and eighteenth centuries | Mac Íomhair, Diarmuid | Article in Journal | | 1967 |
| The lordship of Ballymascanlon | Mac Íomhair, Diarmuid | Article in Journal | | 1969 |
| The murder of Richard Dawson | Mac Íomhair, Diarmuid | Article in Journal | | 1965 |
| Townlands of County Louth in A.D. 1301 | Mac Íomhair, Diarmuid | Article in Journal | | 1971 |
| Two old Drogheda chronicles | | Article in Journal | | 1961 |