| 17th century Ireland, 1603-1702 | Simms, J. G. (John Gerald) | Article in Book | | 1971 |
| A Jacobite colonel : Lord Sarsfield of Kilmallock | Simms, J. G. (John Gerald) | Article in Journal | | 1954 |
| A Jacobite narrative of the war in Ireland, 1688-1691 | Gilbert, J. T. (John Thomas), Sir, 1829-1898Simms, J. G. (John Gerald) | Monograph or Collective Volume | Irish University Press | 1971 |
| A surveyor's report on some townlands of County Louth | Simms, J. G. (John Gerald) | Article in Journal | | 1971 |
| Bibliography | Simms, J. G. (John Gerald) | Article in Book | | 1976 |
| Co. Sligo in the eighteenth century | Simms, J. G. (John Gerald) | Article in Journal | | 1961 |
| Colonial nationalism, 1698-1776 : Molyneux's The case of Ireland stated | Simms, J. G. (John Gerald) | Monograph or Collective Volume | Mercier Press | 1976 |
| Connacht in the eighteenth century | Simms, J. G. (John Gerald) | Article in Journal | | 1958 |
| County Donegal in 1739 | Simms, J. G. (John Gerald) | Article in Journal | | 1960 |
| County Donegal in the Jacobite war (1689-91) | Simms, J. G. (John Gerald) | Article in Journal | | 1967 |
| County Louth and the Jacobite war | Simms, J. G. (John Gerald) | Article in Journal | | 1961 |
| County Sligo in the eighteenth century | Simms, J. G. (John Gerald) | Article in Journal | | 1961 |
| Cromwell at Drogheda, 1649 | Simms, J. G. (John Gerald) | Article in Journal | | 1973 |
| Cromwell at Drogheda, 1649 | Simms, J. G. (John Gerald) | Article in Journal | | 1974 |
| Cromwell's siege of Waterford, 1649 | Simms, J. G. (John Gerald) | Article in Journal | | 1960 |
| Dean Swift and County Armagh | Simms, J. G. (John Gerald) | Article in Journal | | 1971 |
| Dean Swift and the currency problem | Simms, J. G. (John Gerald) | Article in Journal | | 1978 |
| Denis Sheridan and some of his descendants | Simms, J. G. (John Gerald) | Article in Journal | | 1975 |
| Donegal in the Ulster plantation | Simms, J. G. (John Gerald) | Article in Journal | | 1972 |
| Dublin in 1685 | Simms, J. G. (John Gerald) | Article in Journal | | 1965 |
| Dublin in 1776 | Simms, J. G. (John Gerald) | Article in Journal | | 1977 |
| Eye-witnesses of the Boyne | Simms, J. G. (John Gerald) | Article in Journal | | 1963 |
| G. A. Hayes-McCoy (1911-75) | Simms, J. G. (John Gerald) | Article in Journal | | 1976 |
| Hugh Dubh O'Neill's defence of Limerick, 1650-1 | Simms, J. G. (John Gerald) | Article in Journal | | 1957 |
| Huguenot Portarlington : record of the Commemmorations, 23rd August, 1972. | Simms, J. G. (John Gerald) | Monograph or Collective Volume | Select Vestry of Portarlington | 1974 |
| Ireland in the age of Swift | Simms, J. G. (John Gerald) | Article in Book | | 1967 |
| Irish Catholics and the parliamentary franchise, 1692-1728 | Simms, J. G. (John Gerald) | Article in Journal | | 1960 |
| Irish Jacobites : lists from Trinity College Dublin Ms.N. 1. 3 | | Article in Journal | | 1960 |
| Jacobite Ireland, 1685-91 | Simms, J. G. (John Gerald) | Monograph or Collective Volume | Routledge & Kegan Paul | 1969 |
| John Toland (1670-1722), a Donegal heretic | Simms, J. G. (John Gerald) | Article in Journal | | 1969 |
| John Toland (1670-1722), a Donegal heretic | Simms, J. G. (John Gerald) | Article in Journal | | 1969 |
| Kilkenny in the Jacobite war, 1689-91 | Simms, J. G. (John Gerald) | Article in Journal | | 1961 |
| Land owned by Catholics in Ireland in 1688 | Simms, J. G. (John Gerald) | Article in Journal | | 1951 |
| Lord Kilmallock's letters to his wife | Simms, J. G. (John Gerald) | Article in Journal | | 1957 |
| Manus O'Donnell, 21st lord of Tir Conaill | Simms, J. G. (John Gerald) | Article in Journal | | 1962 |
| Marlborough's siege of Cork, 1690 | Simms, J. G. (John Gerald) | Article in Journal | | 1969 |
| Mayo landowners in the seventeenth century | Simms, J. G. (John Gerald) | Article in Journal | | 1965 |
| Meath landowners in the Jacobite war | Simms, J. G. (John Gerald) | Article in Journal | | 1962 |
| Remembering 1690 | Simms, J. G. (John Gerald) | Article in Journal | | 1974 |
| Report on the compilation of a bibliography of source material for the history of Ireland, 1685-1702 | Simms, J. G. (John Gerald) | Article in Journal | | 1960 |
| Sandford Church, 1826-1976 | James, DermotSimms, J. G. (John Gerald) | Monograph or Collective Volume | [Sandford Church] | 1976 |
| Schomberg at Dundalk, 1689 | Simms, J. G. (John Gerald) | Article in Journal | | 1971 |
| Select documents X. The original draft of the civil articles of Limerick, 1691 | | Article in Journal | | 1952 |
| seventeenth-century Ireland (1603-1702) | Simms, J. G. (John Gerald) | Article in Journal | | 1967 |
| Seventeenth-century Ireland, 1603-1702 | Simms, J. G. (John Gerald) | Article in Book | | 1971 |
| Sligo in the Jacobite war, 1689-91 | Simms, J. G. (John Gerald) | Article in Journal | | 1965 |
| The alleged treaty stone of Limerick | Simms, J. G. (John Gerald) | Article in Journal | | 1962 |
| The bishopric of Derry and the Irish Society of London, 1602-1705, 1 : 1602-70; 2 : 1670-1705. 2 vols. | Moody, T. W. (Theodore William), 1907-1984Simms, J. G. (John Gerald) | Monograph or Collective Volume | | 1968 |
| The bishopric of Derry and the Irish Society of London, 1602-1705. | Moody, T. W. (Theodore William), 1907-1984Simms, J. G. (John Gerald) | Monograph or Collective Volume | Irish Mss. Commission | 1968 |
| The bishops' banishment act of 1697 (9 Will. III, c.1) | Simms, J. G. (John Gerald) | Article in Journal | | 1970 |
| The case of Ireland stated | Simms, J. G. (John Gerald) | Article in Book | | 1973 |
| The Civil Survey, 1654-6 | Simms, J. G. (John Gerald) | Article in Journal | | 1954 |
| The Cromwellian settlement of Tipperary | Simms, J. G. (John Gerald) | Article in Journal | | 1989 |
| The Danish force at Limerick, 1690 | Danaher, Kevin, 1913-2002Simms, J. G. (John Gerald) | Article in Journal | | 1990 |
| The Danish force in Ireland, 1690-91 | | Monograph or Collective Volume | The Stationery Office [for the Irish Manuscripts Commission] | 1962 |
| The establishment of Protestant ascendancy, 1691-1714 | Simms, J. G. (John Gerald) | Article in Book | | 1986 |
| The historical work of T. W. Moody | Simms, J. G. (John Gerald) | Article in Book | | 1980 |
| The Irish on the continent, 1691-1800 | Simms, J. G. (John Gerald) | Article in Book | | 1986 |
| The Irish parliament of 1713 | Simms, J. G. (John Gerald) | Article in Book | | 1963 |
| The Jacobite parliament of 1689 | Simms, J. G. (John Gerald) | Monograph or Collective Volume | Dundalgan Press | 1966 |
| The making of a penal law (2 Anne, c.6), 1703-4 | Simms, J. G. (John Gerald) | Article in Journal | | 1960 |
| The Restoration and the Jacobite War (1660-91) | Simms, J. G. (John Gerald) | Article in Book | | 1967 |
| The Restoration, 1660-85 | Simms, J. G. (John Gerald) | Article in Book | | 1976 |
| The second duke of Ormond | Simms, J. G. (John Gerald) | Article in Journal | | 1971 |
| The siege of Derry | Simms, J. G. (John Gerald) | Article in Journal | | 1964 |
| The siege of Derry | Simms, J. G. (John Gerald) | Monograph or Collective Volume | A.P.C.K. | 1966 |
| The siege of Derry (1689) | Simms, J. G. (John Gerald) | Article in Journal | | 1963 |
| The siege of Limerick, 1690 | Simms, J. G. (John Gerald) | Article in Book | | 1967 |
| The siege of Limerick, 1690 | Simms, J. G. (John Gerald) | Article in Journal | | 1990 |
| The surrender at Limerick, 1691 | Simms, J. G. (John Gerald) | Article in Journal | | 1954 |
| The surrender of Limerick, 1691 | Simms, J. G. (John Gerald) | Article in Journal | | 1954 |
| The Treaty of Limerick | Simms, J. G. (John Gerald) | Monograph or Collective Volume | Dundalgan Press | 1961 |
| The Ulster plantation in county Donegal | Simms, J. G. (John Gerald) | Article in Journal | | 1971 |
| The war of the two kings, 1685-91 | Simms, J. G. (John Gerald) | Article in Book | | 1976 |
| The Williamite confiscation in Ireland, 1690-1703 | Simms, J. G. (John Gerald) | Monograph or Collective Volume | Faber | 1956 |
| The Williamite war in South Ulster | Simms, J. G. (John Gerald) | Article in Journal | | 1979 |
| War and politics in Ireland 1649-1730. | Hayton, D. W. (David William)O'Brien, GerardSimms, J. G. (John Gerald) | Monograph or Collective Volume | Hambledon | 1986 |
| William Molyneux of Dublin : 1656-1698. | Kelly, P. H.Simms, J. G. (John Gerald) | Monograph or Collective Volume | Irish Academic Press | 1982 |
| William Molyneux of Dublin : a life of the seventeenth-century political writer and scientist. Edited by P.H. Kelly | Simms, J. G. (John Gerald) | Monograph or Collective Volume | | 1982 |
| Williamite peace tactics, 1690-1 | Simms, J. G. (John Gerald) | Article in Journal | | 1952 |