Hi Jack to help isolate them I have this to add. The address of Samuel Moore upon marriage was Altahullion (now Drum), which is Bovevagh parish near Dungiven. This is 7 or 8 miles from Limavady (Drumachose). It seems unlikely that our Moores were from Limavady as Samuel gave his address as Bovevagh and married in Bovevagh Presbyterian Church. Jane Black gave her address as Ballyness which is Dungiven. So you would need to search the records for the Bovevagh and Dungiven areas for the origins of our Moore family.
Benjamin Moore who was in the 1841 census died about 1862. The Griffiths Revision Books show that his farm passed to David Moore in that year. However there was another Benjamin Moore who married Margaret Young on 24 Dec 1888 in Bovevagh Church of Ireland
Married 1819 Bovevagh Presbterian Church
Sameul Moore, Altahullion to Jane dau of Robert Black, Ballyness.
Baptism 1822 - James son of Sam'l & Jane Moor, Carryclare, T. Finlagan 29th Oct 1822
Baptism 1824 - Thos son of Sam'l & Jane Moore, Carryreagh, T. Finlagan 11 Nov 1824
Baptism 1824 - Wm son of Jno & Mary Moore, Ballymore[?], T. Finlagan 20th April 1824
The Jno (John Moore) above likely related to Samuel.
One Margaret Moore died in 1872 with the address of Altahullion Drum, her testament says she has a sister named Elizabeth Moore and her mother is Elizabeth Moore assumably both still alive in 1872. Not sure how they connect to Samuel but assuming Altahullion is a small farmland then likely they are somehow related. Some death certificates maybe found for them but I have not had the time to look. There were several Moore's farming in 1858 including a Samuel & Thomas Moore both at Drumachose, don't know if they relate but again death certificates might be available. If anyone can look these Moore's up for further info that would be great.