You may find this useful: http://webgis.archaeology.ie/historicenvironment/

A helpful stranger on Reddit tells me that "Cillin" is a term, not a title. It originally meant 'enclosure' or 'cell for prisoners or monks', but was also applied to special graveyards for unbaptized children and others who could not be buried on consecrated ground: https://www.scribd.com/document/18686459/The-origins-of-the-Irish-Cillin-the-segregation-of-infant-burials-within-an-early-medieval-enclosure-at-Carrowkeel-Co-Galway. Changing to "Killvilly Cemetery", but will put historic details in metadata. Thanks for review.

Good suggestion. I'm going to look into this. The old maps say Kilvilly, but the modern eircode map (https://finder.eircode.ie/#/map) says Cillin. I'll try to contact someone who lives in the area and get the lowdown. Thanks for the link to the overlay.