| A brief history of Aghalee parish to commemorate the three hundredth anniversary of the consecration of Aghalee parish church, 1st May 1677-1st May 1977 | Brennan, S. J., Rev. | Monograph or Collective Volume | Mourne Observer [Printer] | 1977 |
| A short history of the Parish of Dromara Ireland | Long, S.E. | Monograph or Collective Volume | Mourne Observer [Printer] | 1979 |
| Historic clocks of county Down | Carson, W. H. | Monograph or Collective Volume | Mourne Observer | 2001 |
| Kilcoo Parish Church, Bryansford | Countess of Roden, Clodagh | Monograph or Collective Volume | Mourne Observer [Printer] | 1971 |
| Railway memories : former empolyees and passengers recall the 'golden years' and ultimate demise of the Great Northern Railway | Bowman, TerenceDempster, AmyTelford, David | Monograph or Collective Volume | Mourne Observer | 1991 |
| Sailing ships of Mourne : with sections on the county Down fishing fleet, the boat builders, local harbours, Newcastle and Kilkeel lifeboats | | Monograph or Collective Volume | Mourne Observer | 1995 |
| The Bangors and Ballyculter: an historical sketch of the Parish of Ballyculter (Strangford) | Kennedy, William E. | Monograph or Collective Volume | [Mourne Observer] (printer) | 1980 |
| The dam builders : the story of the men who built the Silent Valley reservoir | Carson, W. H. | Monograph or Collective Volume | Mourne Observer | 1981 |