The townland name itself, derived from the Irish, points to a landscape that was known and named long before any formal record-keeping, and the presence of a church here suggests a community with enough permanence and local identity to build in stone and maintain a place of worship over generations.

Beyond its classification as a recorded monument, the specific history of this building, its construction date, the patrons who funded it, the congregation it served, and any architectural particulars that might distinguish it from the hundreds of modest rural Catholic churches built across Connacht during the nineteenth century, remains to be fully documented in the public record. What can be said is that rural Catholic church-building in Galway accelerated considerably after Catholic Emancipation in 1829 and again in the decades following the Famine, when communities that had previously worshipped in mass-houses or in the open air were able to construct permanent, identifiable buildings. A church in a small townland like Cloonascarberry would typically have served not just its immediate neighbours but the wider parish, functioning as a focal point for a dispersed rural population.