| 'Not Christian, civil or human creatures, but heathen or rather savage and brute beasts' : Andrew Trollope and the 'reform' of Ireland in the 1580s | Heffernan, David | Article in Journal | | 2022 |
| An early Elizabethan treatise on Laois and Offaly: Cormac mac Briain Í Chonchubhair's 'Device for the Government of Ireland' (c.1565) | Heffernan, David | Article in Journal | | 2015 |
| Complaint and reform in late Elizabethan Dublin, 1579-94 | Heffernan, David | Article in Book | | 2017 |
| Connecting the economies of Tudor Ireland and England: Edward Waterhouse's 'A mean to quiet the north part of Ulster...and to strengthen the northwest coast of England' | Heffernan, David | Article in Journal | | 2023 |
| Debating Irish policy at the court of Elizabeth I, c.1558-80 | Heffernan, David | Article in Book | | 2024 |
| Debating Tudor policy in sixteenth-century Ireland. 'reform' treatises and political discourse | Heffernan, David | Monograph or Collective Volume | Manchester University Press | 2018 |
| Early modern Duhallow c. 1534-1641: the crisis decline and fall of Irish lordship | Heffernan, David | Monograph or Collective Volume | Four Courts Press | 2022 |
| Early modern Duhallow, c.1534-1641 | Heffernan, David | Monograph or Collective Volume | Four Courts Press | 2022 |
| Essex's 'Enterprise'. Walter Devereux, first earl of Essex and the failure of plantation in Elizabethan Ulster, c.1573-6 | Heffernan, David | Article in Journal | | 2019 |
| Military strategy and government victualling in Munster during the Second Desmond Rebellion, 1579-83: Swethin Johnson's 'A Ready Way for the Reformation of Abuses in Ireland' (c.1583) | Heffernan, David : Johnson, Swethin, fl.1572-1583 | Article in Journal | | 2020 |
| Patrick Finglas’s A Breviat of the Conquest of Ireland and of the Decay of the Same, c. 1535, and the Tudor conquest of Ireland | Heffernan, David | Article in Journal | | 2018 |
| Political discourse and the Nine Years’ War in late Elizabethan Ireland, c.1593–1603 | Heffernan, David | Article in Journal | | 2020 |
| Reconstructing the estate of Richard Boyle, first earl of Cork, c.1602-43 | Heffernan, David | Article in Journal | | 2015 |
| Reform treatises on Tudor Ireland, 1537-1599 | | Monograph or Collective Volume | Irish Manuscripts Commission | 2016 |
| Rowland Cowyck, 'A brief of certain notes concerning her majesty's profit in Ireland' (c.1582) and religious reform in mid-Elizabethan Ireland | Heffernan, David | Article in Journal | | 2020 |
| Securing Boyle's town: the outbreak and the course of the rising in Bandonbridge and Carbery in 1642 | Heffernan, David | Article in Journal | | 2021 |
| Silencing Irish Ulster : official depictions of plantation-era Ulster during the reign of James I, c. 1608-25 | Heffernan, David | Article in Book | | 2025 |
| The court minutes of the Worshipful Company of Clothworkers, London concerning their Londonderry estate, 1609-1676 | | Monograph or Collective Volume | Irish Manuscripts Commission | 2025 |
| The reduction of Leinster and the origins of the Tudor conquest of Ireland, c.1534-46 | Heffernan, David | Article in Journal | | 2016 |
| The selection of the English undertakers in the Ulster Plantation, 1609-10 | Heffernan, David | Article in Journal | | 2024 |
| The Ulster Plantation on the Inishowen Peninsula: A Hiberno-British | Heffernan, David | Article in Journal | | 2024 |
| Theory and practice in the Munster plantation: the estates of Richard Boyle, first earl of Cork, 1602–43 | Heffernan, David | Article in Book | | 2018 |
| Three surveys of the Londonderry Plantation | | Article in Journal | | 2019 |
| Tudor reform treatises and government policy in sixteenth-century Ireland | Heffernan, David | Thesis | | 2013 |
| Walter Devereux First Earl of Essex and the colonization of North-East Ulster, 1573-6 | Heffernan, David | Monograph or Collective Volume | Four Courts Press | 2018 |
| ‘John Alen (?): A description of the power of the Irishmen of Leinster made in these days’, c. 1556 | | Article in Book | NA | 2016 |
| ‘Thomas Alen (?): Matters for the good government of Ireland’, 1558 | | Article in Book | NA | 2016 |