| 'Pirates in our channel': The Cromwellian navy in Ireland, 1649-53 | Murphy, Elaine | Article in Journal | | 2011 |
| 1659 : the crisis of the Commonwealth | Mayers, Ruth Elisabeth | Monograph or Collective Volume | Royal Historical Society | 2004 |
| Between war and peace, 1651-1662 | Morrill, John Stephen, 1946- | Article in Book | | 1998 |
| Calendar of State Papers, Domestic. The Commonwealth | | Monograph or Collective Volume | | 1875 |
| Cromwell | Howell, Roger | Monograph or Collective Volume | | 1977 |
| Cromwell | Lapie, P.-O. | Monograph or Collective Volume | | 1949 |
| Cromwell's navy : the fleet and the English Revolution, 1648-1660 | Capp, Bernard Stuart | Monograph or Collective Volume | | 1989 |
| Cromwellian England 1649-1660 | Worden, Blair | Article in Book | | 1986 |
| Hobbes, Bramhall and the politics of liberty and necessity : a quarrel of the Civil Wars and Interregnum | Jackson, Nicholas D. | Monograph or Collective Volume | Cambridge University Press | 2007 |
| Irish Representation in the Protectorate Parliaments | Little, Patrick, 1969- | Article in Journal | | 2004 |
| Lord Broghill and the Cromwellian union with Ireland and Scotland | Little, Patrick, 1969- | Monograph or Collective Volume | Boydell | 2004 |
| Lord Broghill, Vincent Gookin, and the Cork election of 1659 | Barnard, T. C. (Toby Christopher) | Article in Journal | | 1973 |
| Oliver Cromwell and the English revolution | NA | Monograph or Collective Volume | NA | 1990 |
| Oliver Cromwell: father of Irish republicanism | Whelan, Fergus | Article in Journal | | 2010 |
| Parliaments and politics during the Cromwellian protectorate | Little, Patrick, 1969-Smith, David L. (David Lawrence), 1963- | Monograph or Collective Volume | Cambridge University Press | 2007 |
| Politics and military rule in Cromwellian Britain | Smith, David L. (David Lawrence), 1963- | Article in Journal | | 2005 |
| Scotland and Ireland under the Commonwealth : a question of loyalty | Barber, Sarah | Article in Book | | 1995 |
| The 'old' British histories? | Ohlmeyer, Jane H. | Article in Journal | | 2007 |
| The British revolution, 1629-1660 | Macinnes, Allan I. | Monograph or Collective Volume | Palgrave Macmillan | 2005 |
| The correspondence of Henry Cromwell, 1655-1659 : from the British Library Lansdowne manuscripts | Cromwell, Henry, 1628-1674Gaunt, Peter | Monograph or Collective Volume | Cambridge University Press for the Royal Historical Society | 2007 |
| The Cromwellian protectorate | Coward, Barry | Monograph or Collective Volume | Manchester University Press | 2002 |
| The English republic and the meaning of Britain | Hirst, Derek | Article in Journal | | 1996 |
| The English republic, 1649-1660 | Barnard, T. C. (Toby Christopher) | Monograph or Collective Volume | Longman | 1997 |
| The greatness of Oliver Cromwell | Ashley, Maurice Percy | Monograph or Collective Volume | Hodder and Stoughton | 1957 |
| The Irish and Scottish Councils and the Dislocation of the Protectoral Union | Little, Patrick, 1969- | Article in Book | | 2007 |
| The Irish Catholics and the Puritan revolution | Edwards, R. W. D. (Robert Walter Dudley) | Article in Book | | 1957 |
| The struggle for new constitutional and institutional forms | Smith, David L. (David Lawrence), 1963- | Article in Book | | 1992 |
| The swordsmen in power : war and politics under the English republic, 1649-1660 | Hainsworth, D. Roger | Monograph or Collective Volume | Sutton | 1997 |
| Trinity at Charles II's restoration in 1660 : a loyal address | Barnard, T. C. (Toby Christopher) | Article in Journal | | 1969 |
| Unkingship, 1649-1660 | Kelsey, Sean | Article in Book | | 2003 |
| Virtue, providence and political neutralism : Boyle and interregnum politics | Oster, Malcolm | Article in Book | | 1994 |