I am in the (new) process of putting together my family history, and my grandmother was Ellen Concannon. She married my grandfather John Burke, and they lived in Carrownagur, Dunmore, Co Galway.
Anyway, as part of my research I have collated all associated family names from the parish registers which are on microfilm in the National Liabrary of Ireland, Dublin. Unfortunately, they are sparse, and often illegible. However, I did find this.
On Jan 15 1838, Edmond Kelly married Sabina Concannon.
I still do not know if I am connected with Sabina, and will pursue this in the Liabrary and will update you if I find anything new.