Thanks very much cyclamen. Yes, the Coleraine branch of the NIFHS offers the graveyard inscriptions for free on its website – I’d actually already glanced through a few of the graveyards, but not Drumachose yet, so thanks for pointing it out.
As you say, several McCausland headstones. Unfortunately none with my William McCausland.
There is also an early Osborne grave at Drumachose: In memoriam / Henry Osborne / died 1777 / Mary Haslett Osborne / his widow / died 1812
Also, by chance, as I was browsing for a McCausland notice, I found this:
[Belfast Newsletter 25 Jun 1824]
At Newtownards, on Friday the 18th inst. in the 17th year of her age, ELIZABETH MARGARET, youngest daughter of the Rev. Joseph Osborne.
Thanks for the discussion on the use of the word ‘infant’. The message I’m getting is that “Joseph Osborne, infant” was almost certainly a baby/toddler, but there is a chance the word was being used to mean “minor”.
It has been suggested to me before that I may be a descendant of Abraham Hillhouse McCausland and his wife Elizabeth Anderson, because on Familyfinder DNA I match two descendants of Andersons who were probably relatives of the above Elizabeth. The family is very tangled, not as simple as it sounds, and I’m not 100% sure I’ve got that right.