| An authentic history of the professors of painting ... in Ireland | Pasquin, Anthony [i.e. Williams, John] | Monograph or Collective Volume | | 1796 |
| An authentic history of the professors of painting, sculpture, and architecture who have practised in Ireland | Williams, John | Monograph or Collective Volume | [s.n.] | 1769 |
| An Echo of an Anonymous Royalist Broadside Poem of 1643 in Marvell's "An Horatian Ode upon Cromwell's Return from Ireland" | McWilliams, John | Article in Journal | | 2005 |
| Dernaflaw School celebrates its 40th Anniversary | McWilliams, John J. | Article in Journal | | 2016 |
| Dernaflaw School celebrates its 40th Anniversary | McWilliams, John J. | Article in Journal | | 2016 |
| Gildas, Maelgwn and the bards | Williams, John Ellis Caerwyn, 1912-1999 | Article in Book | NA | 1984 |
| Irish Female Convicts and Tasmania | Williams, John | Article in Journal | | 1983 |
| Meilyr Brydydd and Gruffudd ap Cynan | Williams, John Ellis Caerwyn, 1912-1999 | Article in Book | | 1996 |
| Ordered to the Island : Irish convicts and Van Diemen's Land | Davis, RichardWilliams, John | Monograph or Collective Volume | Crossing Press | 1994 |
| The contribution of Ireland to medieval vision literature | Williams, John Ellis Caerwyn, 1912-1999 | Article in Journal | | 1944 |
| The court poet in medieval Ireland | Williams, John Ellis Caerwyn, 1912-1999 | Article in Journal | | 1973 |
| The rise and fall of the Paraguayan Republic, 1800-1870 | Williams, John Hoyt | Monograph or Collective Volume | Institute of Latin American Studies, University of Texas at Austin | 1979 |
| Tipperary convicts and Tasmania | Williams, John | Article in Journal | | 1989 |