| 'Distressed country' - Wicklow in 1599 | O'Brien, Andrew | Article in Journal | | 1999 |
| Captain Halpin's great eastern voyage | O'Brien, Andrew | Article in Journal | | 2004 |
| Captain Robert Halpin's worldwide web | O'Brien, Andrew | Article in Journal | | 2003 |
| Co. Wicklow | O'Brien, Andrew | Article in Journal | | 2000 |
| Newcastle fort 1566-1606 | O'Brien, Andrew | Article in Journal | | 2000 |
| North Quay connections | O'Brien, Andrew | Article in Journal | | 2001 |
| Phelim MacFeagh's revolt, 1597-1599 | O'Brien, Andrew | Article in Journal | | 1998 |
| Some 17th/18th century residents of Belvedere House, Drumcondra | O'Brien, Andrew | Article in Journal | | 2005 |
| The borough of Wicklow | O'Brien, Andrew | Article in Journal | | 2002 |
| The East Breakwater | O'Brien, Andrew | Article in Journal | | 2007 |
| The Great Gale of 1861 | O'Brien, Andrew | Article in Journal | | 2005 |
| The Halpin monument | O'Brien, Andrew | Article in Journal | | 2006 |
| The life and times of Feagh MacHugh O'Byrne (c.1544-1597) | O'Brien, Andrew | Article in Journal | | 1997 |
| The town hall and market house, Wicklow | O'Brien, Andrew | Article in Journal | | 2002 |
| Wicklow and District Chamber of Commerce : a history | O'Brien, Andrew | Monograph or Collective Volume | Wicklow and District Chamber of Commerce | 2002 |
| Wicklow and the Great War | O'Brien, Andrew | Article in Journal | | 2011 |
| Wicklow and the Great War - 1|Wicklow and the Great War - 2|Wicklow and the Great War - [3] -1916 | O'Brien, Andrew | Article in Journal | | 2011 |
| Wicklow Harbour : a history | Cleary, JimmyO'Brien, Andrew | Monograph or Collective Volume | Wicklow Harbour Commissioners | 2001 |
| Wicklow men in the Spanish American War of 1898 | O'Brien, Andrew | Article in Journal | | 2008 |
| Wicklowmen at Trafalgar | O'Brien, Andrew | Article in Journal | | 2006 |
| Wire Ropes Ltd., Wicklow 1951 - 2001 : a commemorative souvenir | O'Brien, Andrew | Monograph or Collective Volume | Wire Ropes Ltd. | 2001 |