Tradition was to marry in the bride’s church so Crumlin NSP may well be the Manderson family church. It might also be the groom’s depending on where he lived.
It was common for Presbyterians and other denominations to be buried in Church of Ireland graveyards. (This goes back to times when COI had a monopoly on the graveyards, and though later other churches did have their own graveyards, if a family plot was established in the COI yard, people often carried on using it).
So I would start with Crumlin NSP records.