These burial grounds, known in Irish as cillíní (singular: cillín), were used for the interment of unbaptised infants, and sometimes stillborn children, who were excluded from consecrated ground under Catholic Church practice. They were typically placed at liminal locations, on parish boundaries, beside ringforts, or at the edges of bogs and fields, and their use spans centuries, continuing in some areas well into the twentieth century.

The grief attached to these places was largely private. Families buried their children at night or in the early morning, without clergy and without ceremony, and the sites were rarely marked with headstones. Over time many became overgrown or forgotten, their locations surviving only in local memory or in placename evidence. Ballybrack itself is a common townland name derived from the Irish Baile Breac, meaning speckled or dappled settlement, and Clare has a considerable number of recorded cillíní scattered across its landscape, a reflection of both its population history and the particular durability of folk burial customs in the west of Ireland.

Because so little documented detail is currently available for this specific site, its precise location, extent, and condition remain unclear from the published record. What can be said is that sites of this kind reward careful attention when found. They are rarely signposted, and the ground markings, small field clearances, low stone outlines, or simple undressed stones at ground level, can be easy to miss without knowing what to look for.