| Carleton's Clogher | Johnston, Jack | Article in Book | | 2006 |
| Clogher parish : some early sidesmen, 1662-1734 | Johnston, Jack | Article in Journal | | 1991 |
| Communications in the Clogher valley,1700-1900 | Johnston, Jack | Article in Journal | | 1978 |
| Flax and linen in the Clogher valley | Johnston, Jack | Article in Journal | | 1983 |
| Glenhoy : the first two hundred years | Johnston, Jack | Monograph or Collective Volume | Greystones Press | 1979 |
| In the days of the Clogher Valley : photographs of the Clogher valley and its railway 1887-1942 | Johnston, Jack | Monograph or Collective Volume | Friar's Bush | 1991 |
| Morgan Tellett and the Richardson estate at Augher, 1832-1855 | Johnston, Jack | Article in Journal | | 2007 |
| Scots settlement and Presbyterianism in Sligo, 1600-2010 | Johnston, Jack | Article in Book | | 2024 |
| Society in the Clogher valley, c.1750-1900 | Johnston, Jack | Article in Book | | 2000 |
| Some additional sources for the local historian | Johnston, Jack | Article in Journal | | 1999 |
| Some christenings, marriages and burials in the parish church of Clogher, Co. Tyrone in 1666 with some notes | Johnston, Jack | Article in Journal | | 1992 |
| St John's Church, Fivemiletown, 1736-1986 | Johnston, Jack | Monograph or Collective Volume | [St John's Church] | 1986 |
| The Brookeborough story : Aghalun in Aghavea | | Monograph or Collective Volume | [Brookeborough Historical Society] | 2004 |
| The Clogher story | Johnston, Jack | Monograph or Collective Volume | Clogher Development Association | 2015 |
| The diocese of Clogher | Johnston, Jack | Article in Book | | 2013 |
| The Irvine baronetcy | #Barbour, BillJohnston, Jack | Article in Journal | | 1993 |
| The Moutray diaries, 1847-1881 | Johnston, Jack | Article in Journal | | 1985 |
| The Orange Order in County Cavan, 1798-2014 | Johnston, Jack | Article in Book | | 2014 |
| The poor law in retrospect - workhouses of the north west | Johnston, Jack | Article in Journal | | 1995 |
| The Riverstown story : county Sligo | | Monograph or Collective Volume | Riverstown Enterprise Development | 2005 |
| The towns of Magherastephana barony, county Fermanagh | Johnston, Jack | Article in Book | | 2004 |
| Ulster Characters. George Vesey Stewart - colonial entrepreneur | Johnston, Jack | Article in Journal | | 2001 |