Marian Shrines of Ireland
It may refer to this http://logainm.ie/Viewer.aspx?text=Cill+Mhuire&streets=yesLogainm is a great resource.
Not sure if I'm getting the same results - for me it's bringing up 'Cill Muires' the nearest of which to Castlecomer are in Laois and southern Kilkenny.This inscription reads 'Coill Muire', Mary's Wood, and there's no result for that anywhere near Castlec. Mysterious....Do you think logainm would take requests?!