| A rental of the Anketell estate, county Monaghan, 1784-89 | O'Neill, Brendan | Article in Journal | | 1984 |
| Early medieval houses in Ireland : some perspectives from archaeology, early Irish history, and experimental archaeology | O'Neill, BrendanO'Sullivan, AidanReilly, Eileen | Article in Journal | | 2017 |
| Irish castles and historic houses | O'Neill, Brendan ; Curl, James Stevens | Monograph or Collective Volume | Caxton Editions | 2002 |
| Rentals and reports of the Kane estate, Errigal Truagh, Co. Monaghan, 1764-1821 | McMahon, TheoO'Neill, Brendan | Article in Journal | | 1990 |
| Replicating E ware for the Words on the Wave exhibition | O'Neill, Brendan ; Doyle, Ian ; Ilgner, Elisabeth | Article in Book | | 2025 |
| Some additional gravestone inscriptions in Kilmore cemetery, county Monaghan | McMahon, TheoMulligan, PatrickO'Neill, Brendan | Article in Journal | | 1985 |
| The Ker estate, Newbliss, Co. Monaghan, 1790-c. 1830 | McMahon, TheoO'Neill, Brendan | Article in Journal | | 1985 |
| Voices of experience 4 | O'Neill, Brendan | Article in Book | | 2013 |