That Angus Callister/Collister is a bit of a mystery to me - I can find his marriage to Margaret QUILLIAM in Patrick in 1809, his burial which given age implies birth c. 1783 but no baptism - nor were there, it seems, any children of the marriage - the 1814 Peel census has a household headed by Angus Collister with 3 females over 14 (I presume this is Angus + Margaret (no children) + 2 ANO's - the others connected to the family both in the 1841 and 1851 I can't find any obvious linkage to.