The name Glebe itself is a clue of sorts: glebe land was historically the portion of ground assigned to a parish clergyman as part of his benefice, typically tied to a Church of Ireland rectory or vicarage in the post-Reformation period. A graveyard on such land might indicate a long continuity of burial practice on a site that passed through several hands and several faiths, though the specifics here remain to be documented in any publicly accessible form.