| Bee boles in Monksland | Johnston, Don | Article in Journal | | 2020 |
| Faughart House | Johnston, Don | Article in Journal | | 2021 |
| Gaelic-speaking Presbyterian ministers of Dundalk/Ballymascanlan | Johnston, Don | Article in Journal | | 2013 |
| John Johnston, 1846-1913: Dundalk Poor Law Guardian, 1877; Justice of the Peacer, 1893; and Louth County Councillor, 1899 | Johnston, Don | Article in Journal | | 2014 |
| Post-Famine economy of the Flurry Valley | Johnston, Don | Article in Journal | | 2010 |
| Post-Famine landlords of the Flurry Valley | Johnston, Don | Article in Journal | | 2011 |
| The Civil War in Dundalk and the case of Charles Gyles, 1898–1922 | Johnston, Don | Article in Book | | 2017 |
| The development of the road system in North Louth and South Armagh | Johnston, Don | Article in Journal | | 2018 |
| The Flurry Valley | Johnston, Don | Article in Journal | | 2003 |
| The Flurry Valley Part III Landlords and society, 1659-1841 | Johnston, Don | Article in Journal | | 2005 |
| The Irish in North America : a regional bibliography | Hardy-Johnston, Donna M.Metress, Seamus P. | Monograph or Collective Volume | P. D. Meany Publishers | 1999 |
| The population of the Flurry Valley from the Famine to 1911 | Johnston, Don | Article in Journal | | 2007 |
| Two censuses of the Brabazon estate in Cooley, 1841 and 1851 | Johnston, Don | Article in Journal | | 2008 |
| Two hundred years of linen mills on the Flurry River | Johnston, Don | Article in Journal | | 2015 |
| Two hundred years of linen mills on the Flurry River, Ravensdale, north Louth | Johnston, Don | Article in Book | NA | 2023 |
| Two pre-Ordnance Survey maps of Carlingford. [1797 and 1833] | Johnston, Don | Article in Journal | | 2009 |