Thanks for the reply. My own search has shown quite a few Camerons in Islandmagee and at present I a attempting to unravel the links between the various Cameron families and the Wilson families in particular. There is a record of an Anne Jane Cameron, born Braidisland, (also known as Broadisland), Islandmagee, on 5 September 1851; father William Cameron, mother Anne Jane Cameron, (nee McAuley). I can't confirm that this is the same Anne Cameron noted in your reply, but she in in the right age bracket.
A James Cameron was born to the same parents on 15 June 1843, he could have been the witness referred to in your note.
Anne and James were both christened in 1st Islandmagee Presbyterian Church, which is about 6km from Ballycarry Presbyterian Church.
I'll follow up the Cameron-Lilley link at my next visit to the NI PRO in a few weeks time.
Best regards