Some data on Drumna townland,
Barony: Mohill .
Registrar’s District: Mohill.
District Electoral division: Riverstown.
Catholic parish: Cloone-Conmaicne (AC Diocese) Parochial records:
. LDS film number 1279223 (available worldwide)
. Baptisms 1820-1927
. Marriages 1823-1921
. Burials 1850-1878 & 1919-1921
.
Change of occupiers of land 1857-1920: LDS film number 846375
.
For definition of above terms visit
http://www.roscommonhistory.ie/People/JohnHunter/Notes.pdf.
Unless you are very rich I suggest you don't pay for Irish research until you know how the system works.