| County Donegal in the Catholic Qualification Rolls, 1778-1790 | Ó Domhnaill, Seán | Article in Journal | | 1949 |
| Magna Carta Hiberniae | Ó Domhnaill, Seán | Article in Journal | | 1942 |
| Some aspects of sixteenth century Irish warfare | Ó Domhnaill, Seán | Article in Journal | | 1944 |
| Some notes on the houses of the Third Order of Saint Francis in Tirconaill | Ó Domhnaill, Seán | Article in Book | | 1952 |
| The maps of the Down Survey | Ó Domhnaill, Seán | Article in Journal | | 1943 |
| Tógáil an dá stáisiún leictreachais i nGaoth Dobhair sna caogaidí | Ó Domhnaill, Seán | Article in Journal | | 2010 |
| Warfare in sixteenth-century Ireland | Ó Domhnaill, Seán | Article in Journal | | 1946 |
| Warfare in sixteenth-century Ireland | Ó Domhnaill, Seán | Article in Journal | | 1946 |