| A Nabob at Holyhead : Richard Griffith, Post Office packet agent, 1815-1820 | Owen, John Roger | Article in Journal | | 2004 |
| A Visit of Two Irish Franciscans to North Wales in 1323. | Falileyev, Alexander | Article in Journal | | 2022 |
| An Irish bronze pin from Anglesey | Fox, Cyril Fred, Sir, 1882-1967 | Article in Journal | | 1940 |
| Destination Wales!: the first aerial crossing of the Irish Sea 200 years ago | Davies, Mark | Article in Journal | | 2017 |
| Gruffudd ap Cynan and the reality and representation of exile | Lewis, Christopher Piers | Article in Book | | 2004 |
| Hands across the Irish Sea: Dun Laoghaire and Hollyhead remember the "Leinster" | Lecane, Philip | Article in Journal | | 2004 |
| Hercules Rainsford and the earl of Clanricard, 1578 | Cunningham, Bernadette | Article in Journal | | 2025 |
| Hiberni reversuri | Miller, Molly | Article in Journal | | 1978 |
| Holyhead's royal visit : Queen Victoria's return from her last journey to Ireland | Robinson, Tony | Monograph or Collective Volume | Foxline Publications | 2002 |
| Inaugural service 1908 - SS Anglia | Anonymous | Article in Journal | | 2007 |
| Jewel of Anglesey... Plas Newydd, an historic Welsh garden with Irish connections | Davies, Mary | Article in Journal | | 2008 |
| Môn's 'Black Gentile' : Anglesey and the Vikings | Jones, Iestyn | Article in Journal | | 2004 |
| North Wales, Ireland and the Isles : the Insular Viking zone | Etchingham, Colmán | Article in Journal | | 2001 |
| Ofnadwy nos | Evans, Robin | Article in Journal | | 1997 |
| On capitals | McParland, Edward | Article in Book | | 2009 |
| Reminders of the City of Dublin Steam Packet Company at Holyhead | Owen, John Roger | Article in Journal | | 2005 |
| St Patrick a native of Anglesey? | Bieler, Ludwig | Article in Journal | | 1953 |
| The Dundalk, Newry and Greenore railway and the Holyhead-Greenore steamship service | Barrie, Derek Stiven | Monograph or Collective Volume | Oakwood | 1980 |
| The importance of external factors in the development of the port of Holyhead | Sanderson, P. E. | Article in Journal | | 1963 |
| The Irish in Holyhead - a miscellany | Merrigan, Michael | Article in Journal | | 1999 |
| The packet commanders, contractors and agents of Holyhead up to 1850 | Owen, John Roger | Article in Journal | | 2000 |
| The strange Irish career of St Cybi of Holyhead | Lewis, Barry | Article in Journal | | 2021 |