| Church control over the grammar schools in Ireland c. 1540-1714 | Ferguson, W. S. | Article in Journal | | 1946 |
| Foyle college : the Maynooth/Dunboyne connection | Ferguson, W. S.Roberts, Alan | Article in Journal | | 1988 |
| Foyle College : the Maynooth/Dunboyne connection | Ferguson, W. S.Roberts, Alan | Article in Journal | | 1990 |
| Maps and views of Derry, 1600-1914 : a catalogue | Ferguson, W. S. | Monograph or Collective Volume | Royal Irish Academy | 2005 |
| Mathias Springham, 1561-1620 | Ferguson, W. S. | Article in Journal | | 1972 |
| Notes on school history : register, 1814-1834 | Ferguson, W. S. | Article in Journal | | 1941 |
| Notes on school history : school register, 1617-1814 | Ferguson, W. S. | Article in Journal | | 1939 |
| Of ships and trade and Trodheim : a Norwegian connection | Ferguson, W. S.Roberts, Alan | Article in Journal | | 1987 |
| Robert Boyd of Ballymacool | Ferguson, W. S.Roberts, Alan | Article in Journal | | 1990 |
| The beginnings of grammar schools in Ireland | Ferguson, W. S. | Article in Journal | | 1942 |