| A century of silence : echoes from a Massachusetts landscape : my quest to find my ill-fated granduncle in America | Mongan, Norman | Monograph or Collective Volume | Herodotus Press | 2009 |
| Monsieur Saint Patrice & St Patrick’s French connec- [sic] | Mongan, Norman | Article in Journal | | 1995 |
| Muintir Mhongain i Tearmann Uí Monghain : notes on the Erenagh family : the sacred clan of Ó Mongan of Ballymongan and Termonomongan | Mongan, Norman | Article in Journal | | 1983 |
| Notes on Erenagh family : the sacred clan of Ó Mongan of Ballymongan and Termongan | Mongan, Norman | Monograph or Collective Volume | The author | 1981 |
| The fallen chieftain : the tomb of Hugh O'Neill, Earl of Tyrone at San Pietro de Montorio, Rome | Mongan, Norman | Article in Journal | | 1984 |
| The Menapia quest : two thousand years of the Menapii : seafaring Gauls in Ireland, Scotland, Wales and the Isle of Man 216 BC - 1990 AD | Mongan, Norman | Monograph or Collective Volume | Herodotus | 1996 |