I have civil registrations 1864-1875 if any of your Patterson's would fit in there, here is an example:
Mary Anne Patterson born 27 April 1868 #182 Ederney, Fermanagh
Fa: Samuel Patterson Mo: Jane Noble
Alicia Patterson born 17 July 1870 #164 Ederney
Also 1845-1862 Church of Ireland Marriages with parents names.
The parents for a birth/marriage would have been born 20-30 years before these events took place.
The Civil Registration District would be the same as the Poor Law Union for Parish's and townlands.